skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
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 : TSUTSUI, KAZUMASA
Total Assignments: 10
Assignment: 1
Reel/Frame:056885/0400   Pages: 4
Recorded: 07/16/2021
Attorney Dkt #:1609-1592PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAYASHI, KOUTAROU
Exec Dt:
06/29/2021
2
SHUTO, HIROSHI
Exec Dt:
06/29/2021
3
TSUTSUI, KAZUMASA
Exec Dt:
06/29/2021
4
KAIDO, HIROSHI
Exec Dt:
06/29/2021
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220081748
17423307
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 2
Reel/Frame:059301/0011   Pages: 5
Recorded: 03/18/2022
Attorney Dkt #:1609-1682PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHUTO, HIROSHI
Exec Dt:
02/14/2022
2
TSUTSUI, KAZUMASA
Exec Dt:
02/14/2022
3
HAYASHI, KOUTAROU
Exec Dt:
02/14/2022
4
SAKAKIBARA, AKIFUMI
Exec Dt:
02/14/2022
5
ANDO, JUN
Exec Dt:
02/14/2022
6
ENDO, SHOTA
Exec Dt:
02/14/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220389554
17760933
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 3
Reel/Frame:059475/0872   Pages: 4
Recorded: 04/01/2022
Attorney Dkt #:1609-1690PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YABU, SHOHEI
Exec Dt:
03/11/2022
2
HAYASHI, KUNIO
Exec Dt:
03/11/2022
3
HAYASHI, KOUTAROU
Exec Dt:
03/11/2022
4
TSUTSUI, KAZUMASA
Exec Dt:
03/11/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220259692
17765697
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 4
Reel/Frame:060395/0300   Pages: 4
Recorded: 07/05/2022
Attorney Dkt #:1609-1738PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TSUTSUI, KAZUMASA
Exec Dt:
05/31/2022
2
SHUTO, HIROSHI
Exec Dt:
05/31/2022
3
HAYASHI, KOUTAROU
Exec Dt:
05/31/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230047602
17790645
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 5
Reel/Frame:060522/0891   Pages: 5
Recorded: 07/15/2022
Attorney Dkt #:1609-1737PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHUTO, HIROSHI
Exec Dt:
06/17/2022
2
TSUTSUI, KAZUMASA
Exec Dt:
06/17/2022
3
ANDO, JUN
Exec Dt:
06/17/2022
4
HAYASHI, KOUTAROU
Exec Dt:
06/17/2022
5
SAKAKIBARA, AKIFUMI
Exec Dt:
06/17/2022
6
KOBAYASHI, SHUNSUKE
Exec Dt:
06/17/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230055479
17792985
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP.
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 6
Reel/Frame:060933/0952   Pages: 4
Recorded: 08/30/2022
Attorney Dkt #:1609-1769PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAKAKIBARA, MUTSUMI
Exec Dt:
08/02/2022
2
SHUTO, HIROSHI
Exec Dt:
08/02/2022
3
TSUTSUI, KAZUMASA
Exec Dt:
08/02/2022
4
HAYASHI, KOUTAROU
Exec Dt:
08/02/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230133134
17907883
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 7
Reel/Frame:061960/0567   Pages: 4
Recorded: 12/02/2022
Attorney Dkt #:1609-1801PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YABU, SHOHEI
Exec Dt:
11/11/2022
2
TSUTSUI, KAZUMASA
Exec Dt:
11/11/2022
3
KUWAYAMA, TAKUYA
Exec Dt:
11/11/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230304112
18007621
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 8
Reel/Frame:062397/0475   Pages: 11
Recorded: 01/17/2023
Attorney Dkt #:1609-1818PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHUTO, HIROSHI
Exec Dt:
12/27/2022
2
TSUTSUI, KAZUMASA
Exec Dt:
12/27/2022
3
HAYASHI, KOUTAROU
Exec Dt:
12/27/2022
4
SAKAKIBARA, AKIFUMI
Exec Dt:
12/27/2022
5
ANDO, JUN
Exec Dt:
12/27/2022
6
YOSHIDA, MITSURU
Exec Dt:
12/27/2022
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230257845
18016141
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 9
Reel/Frame:062592/0579   Pages: 4
Recorded: 02/05/2023
Attorney Dkt #:1609-1819PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TSUTSUI, KAZUMASA
Exec Dt:
01/10/2023
2
SHUTO, HIROSHI
Exec Dt:
01/10/2023
3
HAYASHI, KOUTAROU
Exec Dt:
01/10/2023
4
YOSHIDA, MITSURU
Exec Dt:
01/10/2023
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230279532
18019738
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP.
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042
Assignment: 10
Reel/Frame:062695/0511   Pages: 8
Recorded: 02/14/2023
Attorney Dkt #:1609-1831PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YOSHIDA, MITSURU
Exec Dt:
01/26/2023
2
SHUTO, HIROSHI
Exec Dt:
01/26/2023
3
TSUTSUI, KAZUMASA
Exec Dt:
01/26/2023
4
HAYASHI, KOUTAROU
Exec Dt:
01/26/2023
Assignee
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230323496
18021066
Correspondence name and address
BIRCH, STEWART, KOLASCH & BIRCH, LLP
8110 GATEHOUSE ROAD, SUITE 100E
FALLS CHURCH, VA 22042

Search Results as of: 04/29/2024 03:55 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT