Tokyo, Japan

Ihi Corporation


USPTO Granted Patents = 1,198

% Expired Patents = 13.4



Trademarks = 12

Forward Citations = 2,095

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1,248 inventors (with patents filed for the assignee):

goldMedal Motonao Niizuma (52 out of 53 patents)

silverMedal Naomichi Omori (34 out of 34 patents)

bronzeMedal Yutaka Uneura (29 out of 29 patents)

4.  Kazuhiko Katsumata (29 out of 31 patents)

5.  Kenji Nishimura (27 out of 29 patents)

6.  Susumu Tokura (25 out of 25 patents)

7.  Toshiyuki Suda (25 out of 26 patents)

8.  Jun Araki (23 out of 35 patents)

9.  Ryota Sakisaka (22 out of 24 patents)

10.  Yuji Sasaki (21 out of 64 patents)

11.  Haruki Eguchi (21 out of 30 patents)

12.  Toshiro Fujimori (20 out of 25 patents)

13.  Shintaro Ito (19 out of 58 patents)

14.  Hiroyuki Kamata (19 out of 48 patents)

15.  Soichiro Kato (18 out of 19 patents)


Core Competencies:
Gas Turbine
Turbocharger
Centrifugal Compressor
Combustion System
Power Management
Electric Motor
Hybrid Power Source
Anomaly Detection

1,198 patents:

Company Overview
Ihi Corporation, headquartered in Tokyo, Japan, specializes in advanced gas turbine technology, focusing on the development and manufacturing of high-performance gas turbines, turbochargers, and centrifugal compressors. The company is recognized for its innovative combustion systems and power management solutions, contributing significantly to energy efficiency and sustainability. Ihi also explores hybrid power sources and anomaly detection technologies, positioning itself as a leader in the energy sector and enhancing operational reliability across various applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Ihi Corporation USPTO Patent Assignee Logo
1,198 Patents

#101 in Tokyo

#196 in Japan

#860 in the World

Tokyo, JP
Tokyo, Japan
Forward Citations = 2,095

1,248 inventors:

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ihi Corporation. Retrieved from https://idiyas.com/company/ihi

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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