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For the Inventor, By the Inventor

Osaka, Japan

Stella Pharma Corporation

Calculating rank
USPTO Granted Patents = 11

% Expired Patents = 9.1



Forward Citations = 3

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22 inventors (with patents filed for the assignee):

goldMedal Kohki Uehara (7 out of 9 patents)

silverMedal Mitsunori Kirihata (7 out of 10 patents)

bronzeMedal Hiroshi Takenaka (5 out of 6 patents)

4.  Yoichiro Ohta (4 out of 5 patents)

5.  Hideki Nakashima (4 out of 14 patents)

6.  Yoshihide Hattori (3 out of 3 patents)

7.  Yusuke Taguchi (3 out of 4 patents)

8.  Sayuri Ueda (3 out of 4 patents)

9.  Yuko Ishino (3 out of 4 patents)

10.  Tomohiro Yoshikawa (3 out of 3 patents)

11.  Koji Kawakami (2 out of 7 patents)

12.  Masayuki Kohno (2 out of 4 patents)

13.  Tomohisa Horibe (2 out of 5 patents)

14.  Oumi Nakajima (2 out of 3 patents)

15.  Mari Haramoto (2 out of 3 patents)


11 patents:

1. 12612421 - Method for producing 4-borono-L-phenylalanine and intermediate thereof (2026-04-28),
2. 12343354 - Injection containing p-boronophenylalanine (2025-07-01),
3. 10975104 - Boron-containing compound (2021-04-13),
4. 10344042 - Production method for 2-fluoro-4-borono-L-phenylalanine, and precursor of 2-fluoro-4-borono-L-phenylalanine (2019-07-09),
5. 10005794 - Production method for 2-fluoro-4-borono-L-phenylalanine, and precursor of 2-fluoro-4-borono-L-phenylalanine (2018-06-26),
6. 9815855 - Method for producing 4-borono-L-phenylalanine having 18F atom introduced thereinto, and precursor of 4-borono-L-phenylalanine having 18F atom introduced thereinto (2017-11-14),
7. 9422341 - Method for producing cereulide and derivative thereof, intermediate for production of cereulide, and cereulide derivative (2016-08-23),
8. 8940863 - Selective anticancer chimeric peptides which bind neuropilin receptor (2015-01-27),
9. 8940862 - Selective anticancer chimeric peptides which bind transferrin receptor (2015-01-27),
10. 8907128 - Boron compound with amino acid skeleton containing cyclo ring-type ring (2014-12-09),
11. 8431738 - Optically active α-amino acid into which BSH is introduced and method for synthesizing the same (2013-04-30),
Company Overview
Stella Pharma Corporation, based in Osaka, Japan, is dedicated to the development of innovative pharmaceuticals, particularly in the fields of oncology and regenerative medicine. The company focuses on creating advanced therapeutic solutions that address unmet medical needs, leveraging cutting-edge research and technology to enhance patient outcomes. With a commitment to scientific excellence, Stella Pharma collaborates with various research institutions and industry partners to drive forward its mission of improving healthcare through novel drug development.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Stella Pharma Corporation USPTO Patent Assignee Logo
11 Patents

#451 in Osaka

#4,142 in Japan

#51,831 in the World

Osaka, JP
Osaka, Japan

Stella Pharma Corporation

Forward Citations = 3

22 inventors:

goldMedal Kohki Uehara (7 out of 9 patents)

silverMedal Mitsunori Kirihata (7 out of 10 patents)

bronzeMedal Hiroshi Takenaka (5 out of 6 patents)

4.  Yoichiro Ohta (4 out of 5 patents)

5.  Hideki Nakashima (4 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stella Pharma Corporation. Retrieved from https://idiyas.com/company/stella-pharma

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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