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For the Inventor, By the Inventor

Tokyo, Japan

Research Foundation Itsuu Laboratory

USPTO Granted Patents = 14

% Expired Patents = 85.7



Forward Citations = 11

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19 inventors (with patents filed for the assignee):

goldMedal Koichi Shudo (11 out of 55 patents)

silverMedal Hiroyuki Kagechika (5 out of 11 patents)

bronzeMedal Hideyuki Suzuki (4 out of 159 patents)

4.  Iwao Utsunomiya (4 out of 4 patents)

5.  Masayuki Noguchi (3 out of 3 patents)

6.  Shoji Hizatate (2 out of 6 patents)

7.  Yohei Amano (2 out of 2 patents)

8.  Tsutomu Iwaki (2 out of 30 patents)

9.  Toshiaki Aoki (1 out of 24 patents)

10.  Hideaki Muratake (1 out of 4 patents)

11.  Tatsuro Yasukata (1 out of 2 patents)

12.  Nobuko Fujimaki (1 out of 1 patent)

13.  Madoka Nakagomi (1 out of 1 patent)

14.  Issei Katoh (1 out of 1 patent)

15.  Norikazu Kuroda (1 out of 1 patent)


14 patents:

1. 8785625 - Compound having heterocyclic ring (2014-07-22),
2. 8722730 - 5-membered heterocyclic compound (2014-05-13),
3. 8722723 - Aromatic amide derivative (2014-05-13),
4. 8575337 - Oxazolidinone derivative having fused ring (2013-11-05),
5. 8530646 - Oxazolidinone derivative having 7-membered hetero ring (2013-09-10),
6. 8431613 - Memory fixation accelerator (2013-04-30),
7. 8232300 - Tricyclic amide compound (2012-07-31),
8. 8198329 - Memory consolidation promoting agent and method of use (2012-06-12),
9. 8148362 - Compound having heterocyclic ring (2012-04-03),
10. 8143260 - Tricyclic amine compound (2012-03-27),
11. 8105833 - Method for forming organ (2012-01-31),
12. 7485646 - Serotonin 5-HT3 receptor agonist (2009-02-03),
13. 7314639 - Process for the production of crystals of a benzoic acid derivative (2008-01-01),
14. 7259187 - Tropolone derivatives (2007-08-21),
Company Overview
Research Foundation Itsuu Laboratory, based in Tokyo, specializes in advanced research and development across various technology domains. The organization focuses on innovative solutions in fields such as materials science, biotechnology, and information technology, aiming to drive progress and enhance applications in both industrial and consumer sectors. Its commitment to fostering collaboration and knowledge transfer positions it as a key player in the Japanese research landscape, contributing to advancements that address contemporary challenges.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#1,599 in Tokyo

#3,584 in Japan

#42,290 in the World

Tokyo, JP
Tokyo, Japan

Research Foundation Itsuu Laboratory

Forward Citations = 11

19 inventors:

goldMedal Koichi Shudo (11 out of 55 patents)

silverMedal Hiroyuki Kagechika (5 out of 11 patents)

bronzeMedal Hideyuki Suzuki (4 out of 159 patents)

4.  Iwao Utsunomiya (4 out of 4 patents)

5.  Masayuki Noguchi (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Research Foundation Itsuu Laboratory. Retrieved from https://idiyas.com/company/research-foundation-itsuu-laboratory

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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