Patent Assignment
Reel/Frame 072825/0888
Assignment of Assignor's Interest
Recorded: 2025-09-30
Pages: 4
Assignor
SUMITOMO PHARMA CO., LTD.
Executed: 2025-08-29
Assignee
RACTHERA CO., LTD.
7-1, NIHONBASHI 2-CHOME, CHUO-KU, TOKYO, 103-6012, JAPAN
Covered Properties
(14)
Production Method for Nerve Tissue
Production Method for Retinal Tissue
Method for Producing Retinal Pigment Epithelial Cells
Method for Producing Retinal Tissue
Method for Producing Retinal Tissue
Transplantation Medium
Method for Producing Retinal Pigment Epithelial Cells
Method for Maturation of Retinal Tissue Containing Continuous Epithelium
Method for Producing Retinal Tissues
Method for Amplifying Cone Photoreceptors or Rod Photoreceptors Using Dorsalization Signal Transmitter or Ventralization Signal Transmitter
Application:
16/647,454 →
Publication:
US 2020/0277571
Production Method for Nerve Tissue
Production Method for Retinal Tissue
Method for Producing Retinal Pigment Epithelial Cells
Method for Producing Retinal Tissues
Application:
18/805,131 →
Publication:
US 2024/0399026
Related Assignments
(23)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 15, 2017
From: KUWAHARA, ATSUSHI; YAMASAKI, SUGURU; HIRAMINE, YASUSHI; SASAI, MIYUKI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI)
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 042726/0054 →
Assignment of Assignor's Interest
Jun 15, 2017
From: KUWAHARA, ATSUSHI; YAMASAKI, SUGURU; HIRAMINE, YASUSHI; SASAI, MIYUKI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI)
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 042721/0771 →
Assignment of Assignor's Interest
Mar 2, 2018
From: ANDO, SATOSHI; KURODA, TAKAO
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; HEALIOS K.K.
Reel/Frame 045093/0717 →
Assignment of Assignor's Interest
Mar 7, 2018
From: ANDO, SATOSHI; KURODA, TAKAO; SASAI, MIYUKI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI)
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED; RIKEN
Reel/Frame 045136/0719 →
Assignment of Assignor's Interest
Nov 19, 2018
From: KUWAHARA, ATSUSHI; YAMASAKI, SUGURU; SASAI, MIYUKI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI); TAKAHASHI, MASAYO
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 047541/0658 →
Assignment of Assignor's Interest
Dec 27, 2018
From: OTAGIRI, DAI; MAEDA, TADAO
To: HEALIOS K.K.; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 047862/0110 →
Assignment of Assignor's Interest
Sep 6, 2019
From: KURODA, TAKAO
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; HEALIOS K.K.
Reel/Frame 050293/0466 →
Assignment of Assignor's Interest
Jan 21, 2020
From: SAKAGUCHI, HIDEYA; SASAI, MIYUKI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI); EIRAKU, MOTOTSUGU; NUKAYA, DAIKI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 051574/0397 →
Assignment of Assignor's Interest
Mar 14, 2020
From: NUKAYA, DAIKI; EIRAKU, MOTOTSUGU; KINOSE, YUIKO; ONISHI, AKISHI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 052117/0928 →
Assignment of Assignor's Interest
Mar 14, 2020
From: NUKAYA, DAIKI; EIRAKU, MOTOTSUGU; KINOSE, YUIKO; ONISHI, AKISHI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 052117/0911 →
Assignment of Assignor's Interest
Jan 8, 2022
From: DOR, AVNER; SHANY, YARON; DOUBCHAK, ARIEL; BERMAN, AMIT
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 058586/0545 →
Name and Address Change
May 4, 2022
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 059855/0333 →
Assignment of Assignor's Interest
Mar 28, 2023
From: HEALIOS K.K.
To: HEALIOS K.K.
Reel/Frame 063325/0645 →
Assignment of Assignor's Interest
Apr 4, 2023
From: ANDO, SATOSHI; KURODA, TAKAO
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; HEALIOS K.K.
Reel/Frame 063219/0541 →
Address Change
Apr 4, 2023
From: HEALIOS K.K.
To: HEALIOS K.K.
Reel/Frame 063252/0838 →
Name and Address Change
Apr 4, 2023
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 063252/0815 →
Assignment of Assignor's Interest
May 30, 2023
From: KUWAHARA, ATSUSHI; YAMASAKI, SUGURU; HIRAMINE, YASUSHI; SASAI (LEGAL REPRESENTATIVE OF DECEASED INVENTOR YOSHIKI SASAI), MIYUKI
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 063798/0032 →
Assignment of Assignor's Interest
Nov 27, 2023
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 065666/0629 →
Assignment of Assignor's Interest
Apr 22, 2024
From: KUWAHARA, ATSUSHI; YAMASAKI, SUGURU; HIRAMINE, YASUSHI; SASAI (LEGAL REPRESENTATIVE OF THE DECEASED INVENTOR YOSHIKI SASAI), MIYUKI
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 067185/0569 →
Assignment of Assignor's Interest
Aug 15, 2024
From: NUKAYA, DAIKI; EIRAKU, MOTOTSUGU; KINOSE, YUIKO; ONISHI, AKISHI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 068295/0543 →
Assignment of Assignor's Interest
Aug 15, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 068295/0535 →
Change of Name
Aug 15, 2024
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 068295/0519 →
Assignment of Assignor's Interest
Oct 4, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 068799/0134 →