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Forward Citations = 83

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3 inventors (with patents filed for the assignee):

Shigeki Kobayashi (8 out of 9 patents)

Osamu Izumisawa (2 out of 37 patents)

Tomokazu Izumisawa (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 9339906 - Pneumatic beveler (2016-05-17),

2. 9289885 - Ratchet wrench having an end cap (2016-03-22),

3. 9010509 - Ratchet drive for a ratchet wrench (2015-04-21),

4. 8480453 - Die grinder with rotatable head (2013-07-09),

5. 8261849 - Jumbo hammer clutch impact wrench (2012-09-11),

6. 8240394 - Hammer with vibration reduction mechanism (2012-08-14),

7. 8020631 - Reversible valve assembly for a pneumatic tool (2011-09-20),

8. 7802633 - Reversible valve assembly for a pneumatic tool (2010-09-28),

9. D557097 - Butterfly impact wrench (2007-12-11),

10. 6695072 - Hand-held pneumatic rotary drive device having an adjustable air exhaust (2004-02-24),

11. D430995 - Miniature sander (2000-09-19),

Sp Air Kabushiki Kaisha is a leading manufacturer of industrial air tools and pneumatic equipment. With over 60 years of experience, the company offers a wide range of high-quality products designed for professional use in various industries such as automotive, construction, and manufacturing. Sp Air is committed to providing innovative solutions to meet the needs of its customers around the world.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

11 Patents

#1,588 in Tokyo

#4,042 in Japan

#50,255 in the World

Tokyo, Japan

Sp Air Kabushiki Kaisha

Forward Citations = 83

3 inventors:

Shigeki Kobayashi (8 out of 9 patents)

Osamu Izumisawa (2 out of 37 patents)

Tomokazu Izumisawa (1 out of 1 patent)

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