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For the Inventor, By the Inventor

Sakai, Japan

Viv Engineering Inc.


USPTO Granted Patents = 12

% Expired Patents = 41.7


Forward Citations = 77

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2 inventors (with patents filed for the assignee):

goldMedal Tadashi Hishida (12 out of 13 patents)

silverMedal Norimasa Nishiura (1 out of 2 patents)


12 patents:

1. 9560799 - Rotating body for mower (2017-02-07),
2. 7827771 - Mower with disc-shaped mowing blade (2010-11-09),
3. 7624559 - Anti-wrapping trimmer with idle mow ball (2009-12-01),
4. 7607244 - Snow-plowing apparatus (2009-10-27),
5. 7222476 - Hand-pushed mower (2007-05-29),
6. 6874306 - Hand-pushed mower (2005-04-05),
7. 6217810 - Method of manufacturing gear case (2001-04-17),
8. 5197351 - Cam shaft and process for manufacturing the same (1993-03-30),
9. 5136780 - Process for manufacturing a cam shaft (1992-08-11),
10. 4925322 - Ball bearing (1990-05-15),
11. 4917529 - Arrangement for coupling rotary shaft with rotary member (1990-04-17),
12. 4826346 - Camshaft preferably for an internal combustion engine (1989-05-02),
Viv Engineering Inc. is a leading provider of engineering solutions specializing in the design and manufacturing of precision machined components. With a team of highly skilled engineers and state-of-the-art facilities, we deliver innovative and high-quality products to meet our clients' needs. Our expertise spans across various industries including aerospace, automotive, and medical. Contact us today to learn more about how we can support your engineering requirements.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#8 in Sakai

#3,930 in Japan

#48,090 in the World

Sakai, JP
Sakai, Japan

Viv Engineering Inc.

Forward Citations = 77

2 inventors:

goldMedal Tadashi Hishida (12 out of 13 patents)

silverMedal Norimasa Nishiura (1 out of 2 patents)

Please report any incorrect information to [email protected]
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