% Expired Patents = 71.4

EPO Patents = 1

Trademarks = 1

Forward Citations = 157

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15 inventors (with patents filed for the assignee):

Isao Karube (4 out of 16 patents)

Atsunori Hiratsuka (2 out of 9 patents)

Kenji Yokoyama (2 out of 60 patents)

4. Kazuyoshi Yano (2 out of 15 patents)

5. Hitoshi Muguruma (1 out of 3 patents)

6. Ichiji Namatame (1 out of 5 patents)

7. Hiroaki Suzuki (1 out of 8 patents)

8. Yoshio Suzuki (1 out of 74 patents)

9. Koji Sakairi (1 out of 8 patents)

10. Satoshi Koide (1 out of 4 patents)

11. Shuo-Wen Tsai (1 out of 1 patent)

12. Toshio Matsunaga (1 out of 1 patent)

13. Teru Kato (1 out of 1 patent)

14. Masao Karube (1 out of 1 patent)

15. Seiko Mitachi (1 out of 15 patents)

7 patents: Sort by Forward Citations

1. 8221604 - Method for controlling substance transfer (2012-07-17),

2. 8062492 - Method for analyzing protein (2011-11-22),

3. 8012430 - Methods for producing microchannel chips, microchannel chips, methods for separating biomolecules using the microchannel chips, and electrophoretic apparatus having the microchannel chips (2011-09-06),

4. 7574893 - Odor sensor (2009-08-18),

5. 7303867 - Method for detecting target nucleotide sequences (2007-12-04),

6. 7087149 - Biosensor (2006-08-08),

7. 6419809 - Miniature reference electrode (2002-07-16),

Company Overview

Katayanagi Institute is a leading research and development organization specializing in advanced technologies. We provide innovative solutions in fields such as artificial intelligence, robotics, and bioengineering. Our team of experts are dedicated to pushing the boundaries of scientific discovery and creating cutting-edge products that improve lives. Visit our website to learn more about our projects and collaborations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

7 Patents

#2,284 in Tokyo

#5,450 in Japan

Tokyo, Japan

Katayanagi Institute

Forward Citations = 157

15 inventors:

Isao Karube (4 out of 16 patents)

Atsunori Hiratsuka (2 out of 9 patents)

Kenji Yokoyama (2 out of 60 patents)

4. Kazuyoshi Yano (2 out of 15 patents)

5. Hitoshi Muguruma (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Katayanagi Institute. Retrieved from https://idiyas.com/company/katayanagi-institute

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]

1 patent (EPO):

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]