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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 : IMAI, TOSHIO
Total Assignments: 10
Assignment: 1
Reel/Frame:039946/0812   Pages: 3
Recorded: 10/05/2016
Attorney Dkt #:35666-0011002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAKAMOTO, YOSHIMASA
Exec Dt:
10/27/2005
2
ONO, YUICHI
Exec Dt:
10/28/2005
3
IMAI, TOSHIO
Exec Dt:
10/31/2005
4
NAKAGAWA, YASUKO
Exec Dt:
10/28/2005
Assignee
1
EISAI CO., LTD.
6-10, KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9994816
US20150299654
14703000
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 2
Reel/Frame:036487/0671   Pages: 3
Recorded: 09/03/2015
Attorney Dkt #:35666-0004003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YAMAGUCHI, KEIKO
Exec Dt:
12/26/2006
2
IMAI, TOSHIO
Exec Dt:
12/26/2006
3
MURAMOTO, KENZO
Exec Dt:
12/28/2006
Assignee
1
EISAI CO., LTD.
6-10, KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9175073
US20130230523
13840927
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 3
Reel/Frame:036487/0809   Pages: 3
Recorded: 09/03/2015
Attorney Dkt #:35666-0004004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YAMAGUCHI, KEIKO
Exec Dt:
12/26/2006
2
IMAI, TOSHIO
Exec Dt:
12/26/2006
3
MURAMOTO, KENZO
Exec Dt:
12/28/2006
Assignee
1
EISAI CO., LTD.
6-10, KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9200066
US20130231466
13840851
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 4
Reel/Frame:036489/0138   Pages: 3
Recorded: 09/03/2015
Attorney Dkt #:35666-0004005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YAMAGUCHI, KEIKO
Exec Dt:
12/26/2006
2
IMAI, TOSHIO
Exec Dt:
12/26/2006
3
MURAMOTO, KENZO
Exec Dt:
12/28/2006
Assignee
1
EISAI CO., LTD.
6-10, KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9453070
US20150056201
14528434
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 5
Reel/Frame:032269/0286   Pages: 7
Recorded: 02/21/2014
Attorney Dkt #:35666-0002US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAKAMOTO, YOSHIMASA
Exec Dt:
12/25/2013
2
NISHIMURA, MIYUKI
Exec Dt:
12/24/2013
3
KAWANO, TETSU
Exec Dt:
12/25/2013
4
SAWA, YUKIHISA
Exec Dt:
12/24/2013
5
IMAI, TOSHIO
Exec Dt:
12/26/2013
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
6-10, KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 1128088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9371389
US20140193421
14240090
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 6
Reel/Frame:044977/0391   Pages: 11
Recorded: 02/20/2018
Attorney Dkt #:38635-0008US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAGUCHI, RYOTA
Exec Dt:
01/24/2018
2
IMAI, TOSHIO
Exec Dt:
01/24/2018
3
INOUE, EIJI
Exec Dt:
01/22/2018
4
YAMADA, AKIO
Exec Dt:
01/22/2018
5
NAKATANI, AKI
Exec Dt:
01/22/2018
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
6-10 KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10428140
US20190077860
15753611
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 7
Reel/Frame:045823/0378   Pages: 12
Recorded: 04/03/2018
Attorney Dkt #:38635-0008US1
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR'S DATA PREVIOUSLY RECORDED ON REEL 044977 FRAME 0391. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
TAGUCHI, RYOTA
Exec Dt:
01/24/2018
2
IMAI, TOSHIO
Exec Dt:
01/24/2018
3
INOUE, EIJI
Exec Dt:
01/22/2018
4
YAMADA, AKIO
Exec Dt:
01/22/2018
5
NAKATANI, AKI
Exec Dt:
01/22/2018
6
HIRAYAMA, TOSHIFUMI
Exec Dt:
01/22/2018
7
ONO, YUICHI
Exec Dt:
01/22/2018
8
ITO, SHUNSUKE
Exec Dt:
01/24/2018
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
6-10 KOISHIKAWA 4-CHOME, BUNKYO-KU
TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10428140
US20190077860
15753611
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 8
Reel/Frame:053681/0656   Pages: 9
Recorded: 09/03/2020
Attorney Dkt #:38635-0012001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
INOUE, EIJI
Exec Dt:
07/29/2020
2
YAMADA, AKIO
Exec Dt:
07/29/2020
3
KAWAKATSU, TOMOMI
Exec Dt:
07/29/2020
4
IMAI, TOSHIO
Exec Dt:
07/30/2020
5
DEGUCHI, MAKI
Exec Dt:
07/29/2020
6
NAKATANI, AKI
Exec Dt:
07/29/2020
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
4-6-10 KOISHIKAWA
BUNKYO-KU, TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10947313
US20210002378
16915412
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 9
Reel/Frame:055228/0323   Pages: 9
Recorded: 02/11/2021
Attorney Dkt #:38635-0012002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
INOUE, EIJI
Exec Dt:
07/29/2020
2
YAMADA, AKIO
Exec Dt:
07/29/2020
3
KAWAKATSU, TOMOMI
Exec Dt:
07/29/2020
4
IMAI, TOSHIO
Exec Dt:
07/30/2020
5
DEGUCHI, MAKI
Exec Dt:
07/29/2020
6
NAKATANI, AKI
Exec Dt:
07/29/2020
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
4-6-10 KOISHIKAWA
BUNKYO-KU, TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11136400
US20210171644
17145001
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 10
Reel/Frame:059113/0958   Pages: 20
Recorded: 02/28/2022
Attorney Dkt #:38635-0013US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YASUDA, NOBUYUKI
Exec Dt:
01/28/2022
2
YAMADA, TOMOHIRO
Exec Dt:
01/27/2022
3
TAGO, FUMITOSHI
Exec Dt:
02/16/2022
4
HOJO, SEIICHIRO
Exec Dt:
02/21/2022
5
IMAI, TOSHIO
Exec Dt:
01/31/2022
Assignee
1
EISAI R&D MANAGEMENT CO., LTD.
4-6-10 KOISHIKAWA
BUNKYO-KU, TOKYO, JAPAN 112-8088
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220205980
17601908
Correspondence name and address
JACK BRENNAN
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022

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