Patent Assignment
Reel/Frame 072399/0820
Assignment of Assignor's Interest
Recorded: 2025-09-29
Pages: 4
Assignor
SUMITOMO PHARMA CO., LTD.
Executed: 2025-07-10
Assignee
RACTHERA CO., LTD.
7-1, NIHONBASHI 2-CHOME, CHUO-KU, TOKYO, 103-6012, JAPAN
Covered Properties
(18)
Transplantation Adjuvant in Cell Therapy Using Neural Progenitor Cells
Region Detecting Method and Region Detecting Device Related to Cell Aggregation
Human Cell Population Comprising Human Retinal Progenitor Cells Without an ISL1 Gene for Transplantation and Methods of Use Thereof
Method for Preserving Neural Tissue
Application:
16/631,264 →
Publication:
US 2020/0216796
Cell Aggregate Including Retinal Tissue and Production Method Therefor
Cell Aggregate, Mixture of Cell Aggregates, and Method for Preparing Same
Application:
16/970,087 →
Publication:
US 2020/0405768
Therapeutic Drug for Disease Accompanied by Disorders in Retinal Cells or Retinal Tissue
Application:
17/418,003 →
Publication:
US 2024/0207483
Dispersion of Pluripotent Stem Cells, and Pluripotent Stem Cell Product and Method for Producing Same
Application:
17/257,719 →
Publication:
US 2021/0230558
Method for Evaluating Quality of Transplant Neural Retina, and Transplant Neural Retina Sheet
Application:
17/437,145 →
Publication:
US 2022/0170098
Composite Including Neural Retina, Retinal Pigment Epithelial Cells, and Hydrogel, and Method for Producing Same
Method for Producing Cell Aggregate Including Glial Progenitor Cells
Medium for Tissue for Transplantation
Application:
18/025,037 →
Publication:
US 2023/0310614
Complex Containing Neural Retina-Containing Cell Aggregates and Matrix, and Method for Manufacturing Same
Application:
18/025,036 →
Publication:
US 2023/0313133
Method for Producing Retinal Tissue
Application:
18/290,392 →
Publication:
US 2024/0252544
Method for Producing Cerebral Cortical Cell Preparation Derived from Human Pluripotent Stem Cells
Application:
18/569,736 →
Publication:
US 2024/0279602
Production Method for Sheet-Like Retinal Tissue
Application:
18/710,340 →
Publication:
US 2025/0019652
Transplantation Medium
Application:
18/846,233 →
Publication:
US 2025/0188412
Cell Population for Transplantation and Method for Producing Same
Application:
19/090,175 →
Publication:
US 2025/0269086
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 19, 2016
From: TAKAHASHI, JUN
To: KYOTO UNIVERSITY
Reel/Frame 037774/0571 →
Assignment of Assignor's Interest
Feb 19, 2016
From: KYOTO UNIVERSITY
To: SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 037774/0589 →
Assignment of Assignor's Interest
May 22, 2018
From: OKUDA, SATORU; EIRAKU, MOTOTSUGU; KUWAHARA, ATSUSHI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 045872/0290 →
Assignment of Assignor's Interest
May 23, 2019
From: MANDAI, MICHIKO; TAKAHASHI, MASAYO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 049265/0861 →
Assignment of Assignor's Interest
Mar 2, 2020
From: TAKAHASHI, MASAYO; MANDAI, MICHIKO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 051980/0254 →
Assignment of Assignor's Interest
Apr 10, 2020
From: MANDAI, MICHIKO; TAKAHASHI, MASAYO; KUWAHARA, ATSUSHI; WATARI, KENJI
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 052363/0566 →
Assignment of Assignor's Interest
Sep 10, 2020
From: YOSHIDA, KENJI; YOSHIKAWA, MANABU; SEKIYA, SAYAKA
To: SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 053731/0253 →
Assignment of Assignor's Interest
Feb 11, 2021
From: KUWAHARA, ATSUSHI; TAKAMURA, NAOKI; FUJIKI, AYAKA; HAYAMA, TETSUYA
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 055225/0374 →
Assignment of Assignor's Interest
Jun 24, 2021
From: SUGITA, SUNAO; MANDAI, MICHIKO; TAKAHASHI, MASAYO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 056659/0705 →
Assignment of Assignor's Interest
Sep 8, 2021
From: KUWAHARA, ATSUSHI; WATARI, KENJI; MATSUSHITA, KEIZO; YAMASAKI, SUGURU
To: SUMITOMO DAINIPPON PHARMA CO., LTD.; RIKEN; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 057411/0877 →
Assignment of Assignor's Interest
Oct 22, 2021
From: TANAKA, YUJI; MANDAI, MICHIKO; TAKAHASHI, MASAYO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 057874/0419 →
Assignment of Assignor's Interest
Mar 2, 2022
From: KOHYAMA, JUN; KAMATA, YASUHIRO; NAKAMURA, MASAYA; OKANO, HIDEYUKI
To: KEIO UNIVERSITY; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 059153/0427 →
Change of Name
Jul 14, 2022
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 060507/0750 →
Change of Name
Nov 21, 2022
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 061972/0730 →
Change of Name
Feb 16, 2023
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 062718/0982 →
Assignment of Assignor's Interest
Nov 14, 2023
From: MANDAI, MICHIKO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO PHARMA CO., LTD
Reel/Frame 065556/0973 →
Corrective Assignment to Correct the Punctuation of Second Assignee Previously Recorded at Reel: 065556 Frame: 0973. Assignor(S) Hereby Confirms the Assignment.
Jan 9, 2024
From: MANDAI, MICHIKO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO PHARMA CO., LTD.
Reel/Frame 066241/0043 →
Assignment of Assignor's Interest
Jan 12, 2024
From: TAKAHASHI, JUN; DOI, DAISUKE; IKEDA, MEGUMI
To: KYOTO UNIVERSITY; SUMITOMO PHARMA CO., LTD.
Reel/Frame 066111/0253 →
Assignment of Assignor's Interest
Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066210/0025 →
Assignment of Assignor's Interest
Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066212/0445 →
Assignment of Assignor's Interest
Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066212/0428 →
Assignment of Assignor's Interest
Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066212/0380 →
Assignment of Assignor's Interest
Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066212/0368 →
Corrective Assignment to Correct the Name of Assignee Previously Recorded at Reel: 066212 Frame: 0445. Assignor(S) Hereby Confirms the Assignment.
Jan 25, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 066371/0053 →
Corrective Assignment to Correct the Name of the Assignee Previously Recorded on Reel 066212 Frame 0368. Assignor(S) Hereby Confirms the Assignment.
Jan 25, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 066371/0049 →