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For the Inventor, By the Inventor

Nagano, Japan

Ihi Shibaura Machinery Corporation

Calculating rank
USPTO Granted Patents = 8

% Expired Patents = 25.0

Forward Citations = 25

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13 inventors (with patents filed for the assignee):

goldMedal Michinori Shida (3 out of 3 patents)

silverMedal Ikuo Iwasaki (3 out of 3 patents)

bronzeMedal Fumio Hasegawa (3 out of 9 patents)

4.  Takaaki Sudoh (3 out of 3 patents)

5.  Takushi Kaneko (3 out of 3 patents)

6.  Naohiro Hasegawa (2 out of 2 patents)

7.  Seigo Tanimoto (2 out of 2 patents)

8.  Yuichi Kawaai (2 out of 2 patents)

9.  Kazunari Akahane (2 out of 2 patents)

10.  Naotsugu Kanai (1 out of 1 patent)

11.  Yutaka Mashima (1 out of 1 patent)

12.  Takeshi Sakai (1 out of 1 patent)

13.  Tetsuya Shimbashi (1 out of 1 patent)


8 patents:

1. 9803601 - Diesel engine (2017-10-31),
2. 9699950 - Lawn-mowing vehicle with outwardly and upwardly rotatable lawn-mowing unit (2017-07-11),
3. 9593649 - Engine (2017-03-14),
4. 9084391 - Lawn mowing vehicle with a control unit for elevating mechanisms and for rotating a blade depending on grass condition (2015-07-21),
5. 9027318 - Reel lawn mower with main body, reel cutting unit, and connection structure for connecting reel cutting unit to main body such that reel cutting unit is rollable (2015-05-12),
6. 8839598 - Lawn mowing vehicle with a control unit for elevating mechanisms (2014-09-23),
7. 8621833 - Lawn mowing vehicle with a control unit for the motor (2014-01-07),
8. D640288 - Blade for a mower (2011-06-21),
Company Overview
Ihi Shibaura Machinery Corporation is a leading manufacturer of industrial machinery, specializing in engines, pumps, compressors, and other equipment. With a history dating back to 1950, the company has a strong reputation for quality and innovation in the industry. Their products are used in a variety of applications, from construction and agriculture to marine and power generation.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

8 Patents

#69 in Nagano

#5,050 in Japan

Nagano, JP
Nagano, Japan

Ihi Shibaura Machinery Corporation

Forward Citations = 25

13 inventors:

goldMedal Michinori Shida (3 out of 3 patents)

silverMedal Ikuo Iwasaki (3 out of 3 patents)

bronzeMedal Fumio Hasegawa (3 out of 9 patents)

4.  Takaaki Sudoh (3 out of 3 patents)

5.  Takushi Kaneko (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ihi Shibaura Machinery Corporation. Retrieved from https://idiyas.com/company/ihi-shibaura-machinery

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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