% Expired Patents = 16.7

EPO Patents = 1

Forward Citations = 18

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11 inventors (with patents filed for the assignee):

Masaru Hori (5 out of 53 patents)

Hiroyuki Kano (5 out of 31 patents)

Shoji Den (5 out of 5 patents)

4. Koji Yamakawa (3 out of 20 patents)

5. Hiroshi Amano (2 out of 40 patents)

6. Masafumi Ito (1 out of 9 patents)

7. Takayuki Ohta (1 out of 2 patents)

8. Toshio Goto (1 out of 13 patents)

9. Nobuo Ishii (1 out of 61 patents)

10. Masanu Hori (1 out of 1 patent)

11. Seigo Takashima (1 out of 1 patent)

12. Hiroshi Amano (0 patent)

6 patents: Sort by Forward Citations

1. 10577719 - Radical generator and molecular beam epitaxy apparatus (2020-03-03),

2. 9447518 - Radical generator and molecular beam epitaxy apparatus (2016-09-20),

3. 8638034 - Multi-micro hollow cathode light source and atomic absorption sepctrometer (2014-01-28),

4. 8310673 - Light source (2012-11-13),

5. 7782463 - Particle density measuring probe and particle density measuring equipment (2010-08-24),

6. 7632379 - Plasma source and plasma processing apparatus (2009-12-15),

Company Overview

Katagiri Engineering Co., Ltd. is a leading engineering company specializing in precision machining, molding, and assembly services. With over 50 years of experience, we have built a reputation for delivering high-quality products to various industries including automotive, electronics, and medical devices. Our state-of-the-art facilities and skilled workforce enable us to provide innovative solutions and meet the demands of our customers globally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#108 in Yokohama

#5,989 in Japan

Yokohama, Japan

Katagiri Engineering Co., Ltd.

Forward Citations = 18

11 inventors:

Masaru Hori (5 out of 53 patents)

Hiroyuki Kano (5 out of 31 patents)

Shoji Den (5 out of 5 patents)

4. Koji Yamakawa (3 out of 20 patents)

5. Hiroshi Amano (2 out of 40 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Katagiri Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/katagiri-engineering-company

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]