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Hochiki Corporation

USPTO Granted Patents = 198

% Expired Patents = 13.1

EPO Patents = 45

Trademarks = 3

Forward Citations = 1,791

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154 inventors (with patents filed for the assignee):

Manabu Dohi (16 out of 23 patents)

Yukio Yamauchi (15 out of 18 patents)

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: Sort by Forward Citations

1. 12656229 - Fire detection apparatus (2026-06-16),

2. 12494113 - Disaster prevention apparatus to detect fire outbreak or gas leakage (2025-12-09),

3. 12474237 - Fire detection apparatus (2025-11-18),

4. 12430997 - Disaster prevention apparatus (2025-09-30),

5. D1093188 - Fire detector (2025-09-16),

6. 12379313 - Fire detection device (2025-08-05),

7. 12374205 - Heat detector (2025-07-29),

8. 12274904 - Fire detection apparatus (2025-04-14),

9. 12274903 - Fire detection apparatus (2025-04-14),

10. 12260725 - Fire detection apparatus (2025-03-25),

11. D1067088 - Smoke detector (2025-03-18),

12. 12235206 - Fire detection apparatus (2025-02-25),

13. D1034264 - Smoke detector cover for fire alarm (2024-07-09),

14. D1034263 - Smoke detector for fire alarm (2024-07-09),

15. 11975228 - Fire detection apparatus (2024-05-07),

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 based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Hochiki Corporation

198 Patents

#351 in Tokyo

#704 in Japan

#4,262 in the World

Hochiki Corporation

Forward Citations = 1,791

154 inventors:

Manabu Dohi (16 out of 23 patents)

Yukio Yamauchi (15 out of 18 patents)

Toshihide Tsuji (12 out of 16 patents)

4. Keisuke Washizu (12 out of 12 patents)

5. Yasuharu Fujiwara (12 out of 12 patents)

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