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Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : SAMPEI, ZENJIRO
Total Assignments: 20
Assignment: 1
Reel/Frame:028817/0534   Pages: 3
Recorded: 08/21/2012
Attorney Dkt #:14875-0221US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
07/30/2012
2
SAMPEI, ZENJIRO
Exec Dt:
08/07/2012
3
WAKABAYASHI, TETSUYA
Exec Dt:
08/01/2012
4
ITO, ERIKO
Exec Dt:
07/30/2012
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130018174
13518861
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 2
Reel/Frame:031080/0987   Pages: 7
Recorded: 08/26/2013
Attorney Dkt #:14875-0224US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9334331
US20130330345
13885421
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 3
Reel/Frame:031148/0318   Pages: 7
Recorded: 09/06/2013
Attorney Dkt #:14875-0224002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140370018
14019117
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 4
Reel/Frame:031150/0481   Pages: 7
Recorded: 09/06/2013
Attorney Dkt #:14875-0224003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140037632
14019712
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 5
Reel/Frame:038364/0608   Pages: 7
Recorded: 04/25/2016
Attorney Dkt #:14875-0224004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10450381
US20160222129
15132996
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 6
Reel/Frame:040275/0140   Pages: 7
Recorded: 11/10/2016
Attorney Dkt #:14875-0224005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20170022293
15288965
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 7
Reel/Frame:050202/0121   Pages: 7
Recorded: 08/28/2019
Attorney Dkt #:14875-0224006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
IGAWA, TOMOYUKI
Exec Dt:
06/24/2013
2
SAMPEI, ZENJIRO
Exec Dt:
07/01/2013
3
KOJIMA, TETSUO
Exec Dt:
07/09/2013
4
SOEDA, TETSUHIRO
Exec Dt:
06/24/2013
5
MUTO, ATSUSHI
Exec Dt:
06/24/2013
6
KITAZAWA, TAKEHISA
Exec Dt:
06/24/2013
7
NISHIDA, YUKIKO
Exec Dt:
06/26/2013
8
IMAI, CHIFUMI
Exec Dt:
08/14/2013
9
SUZUKI, TSUKASA
Exec Dt:
06/24/2013
10
YOSHIHASHI, KAZUTAKA
Exec Dt:
06/21/2013
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190315884
16459791
Correspondence name and address
JANIS K. FRASER, PH.D., J.D.
FISH & RICHARDSON P.C.
P.O. BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 8
Reel/Frame:041154/0673   Pages: 3
Recorded: 02/02/2017
Attorney Dkt #:3467.0130000/KKH
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUIKE, YOSHINAO
Exec Dt:
12/01/2016
2
SAMPEI, ZENJIRO
Exec Dt:
11/23/2016
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME
KITA-KU, TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9765135
US20160176954
14974350
Correspondence name and address
STERNE, KESSLER, GOLDSTEIN & FOX PLLC
1100 NEW YORK AVENUE NW
WASHINGTON, DC 20005
Assignment: 9
Reel/Frame:046027/0128   Pages: 3
Recorded: 06/08/2018
Attorney Dkt #:6663.0023
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUIKE, YOSHINAO
Exec Dt:
12/01/2016
2
SAMPEI, ZENJIRO
Exec Dt:
11/23/2016
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10023630
US20180002415
15688004
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD
ARLINGTON, VA 22203
Assignment: 10
Reel/Frame:049239/0220   Pages: 3
Recorded: 05/21/2019
Attorney Dkt #:6663.0078
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUIKE, YOSHINAO
Exec Dt:
12/01/2016
2
SAMPEI, ZENJIRO
Exec Dt:
11/23/2016
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10385122
US20190062413
16019752
Correspondence name and address
NIXON & VANDERHYE
901 NORTH GLEBE ROAD
ARLINGTON, VA 22203-1808
Assignment: 11
Reel/Frame:053464/0098   Pages: 3
Recorded: 08/11/2020
Attorney Dkt #:6663.0119
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUIKE, YOSHINAO
Exec Dt:
12/01/2016
2
SAMPEI, ZENJIRO
Exec Dt:
11/23/2016
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11597760
US20200031913
16514467
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 12
Reel/Frame:065364/0199   Pages: 3
Recorded: 10/26/2023
Attorney Dkt #:6663.0232
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUIKE, YOSHINAO
Exec Dt:
12/01/2016
2
SAMPEI, ZENJIRO
Exec Dt:
11/23/2016
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240052021
18157320
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 13
Reel/Frame:049927/0313   Pages: 4
Recorded: 08/01/2019
Attorney Dkt #:6663.0109
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SAMPEI, ZENJIRO
Exec Dt:
10/17/2017
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10604561
US20190218277
16333736
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD, SUITE 1100
ARLINGTON, VA 22203
Assignment: 14
Reel/Frame:049927/0327   Pages: 4
Recorded: 08/01/2019
Attorney Dkt #:6663.0113
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SAMPEI, ZENJIRO
Exec Dt:
10/17/2017
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10844113
US20190315840
16435979
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD, SUITE 1100
ARLINGTON, VA 22203
Assignment: 15
Reel/Frame:054050/0030   Pages: 4
Recorded: 10/14/2020
Attorney Dkt #:6663.0154
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SAMPEI, ZENJIRO
Exec Dt:
10/17/2017
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11780908
US20210095008
17066092
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 16
Reel/Frame:054224/0092   Pages: 4
Recorded: 10/30/2020
Attorney Dkt #:6663.0151
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SAMPEI, ZENJIRO
Exec Dt:
04/22/2019
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME
KITA-KU, TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11891432
US20210017256
16980611
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N. GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 17
Reel/Frame:050878/0844   Pages: 3
Recorded: 10/31/2019
Attorney Dkt #:6663.0120
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SAMPEI, ZENJIRO
Exec Dt:
08/05/2019
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11608374
US20190352387
16480765
Correspondence name and address
NIXON & VANDERHYE
901 NORTH GLEBE ROAD
SUITE 1100
ARLINGTON, VA 22203
Assignment: 18
Reel/Frame:050824/0075   Pages: 5
Recorded: 10/25/2019
Attorney Dkt #:6663-0115
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHINOMIYA, KENJI
Exec Dt:
08/01/2019
2
YONEYAMA, KOICHIRO
Exec Dt:
08/06/2019
3
SHIBAHARA, NORIHITO
Exec Dt:
08/07/2019
4
TSUBOI, YOSHINORI
Exec Dt:
08/07/2019
5
FUKUZAWA, TAKU
Exec Dt:
08/07/2019
6
HARAYA, KENTA
Exec Dt:
08/08/2019
7
SAMPEI, ZENJIRO
Exec Dt:
08/07/2019
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME
KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190367599
16480047
Correspondence name and address
NIXON & VANDERHYE P.C.
901 NORTH GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 19
Reel/Frame:053466/0457   Pages: 5
Recorded: 08/12/2020
Attorney Dkt #:6663.0145
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHINOMIYA, KENJI
Exec Dt:
08/01/2019
2
YONEYAMA, KOICHIRO
Exec Dt:
08/06/2019
3
SHIBAHARA, NORIHITO
Exec Dt:
08/07/2019
4
TSUBOI, YOSHINORI
Exec Dt:
08/07/2019
5
FUKUZAWA, TAKU
Exec Dt:
08/07/2019
6
HARAYA, KENTA
Exec Dt:
08/08/2019
7
SAMPEI, ZENJIRO
Exec Dt:
08/07/2019
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 1158543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200407432
16928129
Correspondence name and address
NIXON & VANDERHYE P.C.
901 N GLEBE ROAD
11TH FLOOR
ARLINGTON, VA 22203
Assignment: 20
Reel/Frame:058282/0809   Pages: 6
Recorded: 12/03/2021
Attorney Dkt #:PTB-427-501
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TERAMOTO, REIJI
Exec Dt:
07/14/2021
2
METSUGI, SHOUICHI
Exec Dt:
07/14/2021
3
KAKUZAKI, TARO
Exec Dt:
07/14/2021
4
SAKA, KOICHIRO
Exec Dt:
07/14/2021
5
KOGA, HIKARU
Exec Dt:
07/14/2021
6
SAMPEI, ZENJIRO
Exec Dt:
07/14/2021
Assignee
1
CHUGAI SEIYAKU KABUSHIKI KAISHA
5-1, UKIMA 5-CHOME, KITA-KU
TOKYO, JAPAN 115-8543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220253669
17616421
Correspondence name and address
PAUL T. BOWEN
NIXON & VANDERHYE P.C., 11TH FLOOR
901 NORTH GLEBE ROAD
ARLINGTON, VA 22203

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