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For the Inventor, By the Inventor

Tokyo, Japan

Churyo Engineering Kabushiki Kaisha

Calculating rank
USPTO Granted Patents = 13

Forward Citations = 287

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31 inventors (with patents filed for the assignee):

goldMedal Atsushi Ueda (5 out of 12 patents)

silverMedal Hidetoshi Ishihara (4 out of 25 patents)

bronzeMedal Yasuhiro Tsubaki (3 out of 12 patents)

4.  Kazuo Kitajima (3 out of 5 patents)

5.  Shoichi Hayashi (3 out of 8 patents)

6.  Kenichi Yagami (3 out of 3 patents)

7.  Shuji Yamada (3 out of 3 patents)

8.  Naoyoshi Katou (3 out of 4 patents)

9.  Masateru Takahara (3 out of 4 patents)

10.  Seiki Tamiya (3 out of 4 patents)

11.  Hirofumi Itoh (2 out of 4 patents)

12.  Kunio Kojima (2 out of 5 patents)

13.  Kazuyuki Kobayashi (1 out of 40 patents)

14.  Takashi Tanaka (1 out of 7 patents)

15.  Yasushi Ito (1 out of 2 patents)


13 patents:

1. 5369600 - Apparatus for measuring gas density and sugar content of a beverage (1994-11-29),
2. 5341620 - Can feeding apparatus for a can seamer (1994-08-30),
3. 5320469 - Can seamer (1994-06-14),
4. 5299899 - Can seamer (1994-04-05),
5. 5265707 - Interrupting device in a friction type one-way clutch (1993-11-30),
6. 5263897 - Fluid suction nozzle and fluid-treating apparatus (1993-11-23),
7. 5212969 - Drum type washing apparatus and method of processing the wash using said (1993-05-25),
8. 5161585 - Liquid filling apparatus having a biased gas pipe mounted for a small (1992-11-10),
9. 5107606 - Drum type washing apparatus and method of processing the wash using said (1992-04-28),
10. 5050259 - Drum type washing apparatus and method of processing the wash using said (1991-09-24),
11. 5025764 - Lubricant oil amount detector of a vertical shaft type engine (1991-06-25),
12. 4979868 - Method of gripping corner of strip of cloth (1990-12-25),
13. 4774505 - Method and apparatus for recognizing a gripped condition of linens (1988-09-27),
Company Overview
Churyo Engineering Kabushiki Kaisha, based in Tokyo, specializes in advanced engineering solutions, focusing on the development and manufacturing of precision machinery and components. The company is known for its expertise in various sectors, including automotive engineering and industrial automation. By leveraging cutting-edge technology and innovative design, Churyo Engineering aims to enhance operational efficiency and product performance across diverse applications, contributing significantly to the engineering landscape in Japan and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

13 Patents

#1,665 in Tokyo

#3,754 in Japan

#45,104 in the World

Tokyo, JP
Tokyo, Japan

Churyo Engineering Kabushiki Kaisha

Forward Citations = 287

31 inventors:

goldMedal Atsushi Ueda (5 out of 12 patents)

silverMedal Hidetoshi Ishihara (4 out of 25 patents)

bronzeMedal Yasuhiro Tsubaki (3 out of 12 patents)

4.  Kazuo Kitajima (3 out of 5 patents)

5.  Shoichi Hayashi (3 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Churyo Engineering Kabushiki Kaisha. Retrieved from https://idiyas.com/company/churyo-engineering-kabushiki-kaisha

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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