Tokyo, Japan

Hochiki Corporation

Calculating rank
USPTO Granted Patents = 198

% Expired Patents = 13.1


Trademarks = 3

Forward Citations = 1,797

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154 inventors (with patents filed for the assignee):

goldMedal Manabu Dohi (16 out of 23 patents)

silverMedal Yukio Yamauchi (15 out of 18 patents)

bronzeMedal Toshihide Tsuji (12 out of 16 patents)

4.  Keisuke Washizu (12 out of 12 patents)

5.  Yasuharu Fujiwara (12 out of 12 patents)

6.  Tetsuya Nagashima (11 out of 19 patents)

7.  Hiroshi Shima (11 out of 24 patents)

8.  Isao Saeki (10 out of 10 patents)

9.  Takeshi Takeuchi (9 out of 47 patents)

10.  Hayato Tsurumi (9 out of 10 patents)

11.  Hidenari Matsukuma (8 out of 9 patents)

12.  Sadataka Yuchi (8 out of 12 patents)

13.  Hideki Takano (7 out of 18 patents)

14.  Yoshitaka Egawa (7 out of 61 patents)

15.  Hiroshi Honma (7 out of 20 patents)


Core Competencies:
Fire Detection
Smoke Detector
Heat Detector
Fire Alarm System
Disaster Prevention
Alarm Device
Fire Monitoring
Electrostatic Atomizing
Fire Notification
Scattered Light Detection
Fire Prevention Equipment
Sensor System

198 patents:

Company Overview
Hochiki Corporation, headquartered in Tokyo, Japan, specializes in advanced fire detection technology. The company develops a comprehensive range of products including smoke detectors, heat detectors, and fire alarm systems, aimed at enhancing disaster prevention and safety. Hochiki's innovations extend to alarm devices and fire monitoring solutions, leveraging electrostatic atomizing technology to improve detection accuracy. With a commitment to quality and reliability, Hochiki plays a crucial role in safeguarding lives and property through its cutting-edge fire safety solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Hochiki Corporation USPTO Patent Assignee Logo
198 Patents

#351 in Tokyo

#705 in Japan

#4,268 in the World

Tokyo, JP
Tokyo, Japan
Forward Citations = 1,797

154 inventors:

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

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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