% Expired Patents = 16.7

EPO Patents = 1

Forward Citations = 32

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10 inventors (with patents filed for the assignee):

Susumu Aoyama (5 out of 9 patents)

Tsuyoshi Aoyama (2 out of 2 patents)

Hisanobu Kanamaru (2 out of 79 patents)

4. Tsutomu Koike (2 out of 2 patents)

5. Kazuto Kobayashi (1 out of 5 patents)

6. Nobuyuki Ishinaga (1 out of 9 patents)

7. Yoshiki Hirai (1 out of 5 patents)

8. Naotatsu Asahi (1 out of 11 patents)

9. Hiroshi Tokisue (1 out of 1 patent)

10. Toshiyasu Sugiuchi (1 out of 3 patents)

6 patents: Sort by Forward Citations

1. 10363597 - R-θ table apparatus and processing apparatus of internal thread (2019-07-30),

2. 7331206 - Method of fabricating component having internal teeth and rolling machine thereof (2008-02-19),

3. 5245851 - Differential pinion, metal mold for plastic working the same, and method (1993-09-21),

4. 4924690 - Method and apparatus for plastically forming helical internal gears and (1990-05-15),

5. 4653305 - Apparatus for forming metallic article by cold extrusion (1987-03-31),

6. 4300381 - Method for producing insert for diesel engine combustion chamber (1981-11-17),

Company Overview

M.h. Center Limited is a leading provider of innovative solutions in the field of construction and interior design. With a strong focus on quality and customer satisfaction, we offer a wide range of services including project management, renovation, and fit-out works. Our team of experienced professionals is dedicated to delivering exceptional results for our clients, ensuring that every project is completed to the highest standards. Visit our website to learn more about our services and how we can help you with your next project.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#1 in Misato-shi

#5,988 in Japan

Misato-shi, Japan

M.h. Center Limited

Forward Citations = 32

10 inventors:

Susumu Aoyama (5 out of 9 patents)

Tsuyoshi Aoyama (2 out of 2 patents)

Hisanobu Kanamaru (2 out of 79 patents)

4. Tsutomu Koike (2 out of 2 patents)

5. Kazuto Kobayashi (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: M.h. Center Limited. Retrieved from https://idiyas.com/company/m-h-center

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]