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Tutomu Kawashima — 1 Patent

NCNissho Engineering Co.: 1 patents #7 of 26Top 30%
Koto, JP: #88 of 153 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Tutomu Kawashima has been granted 1 US patent while listed as an inventor at Nissho Engineering Co.. All of these patents were granted in 1990. Tutomu Kawashima ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Tutomu Kawashima in Koto, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4902206 Bellows pump Takao Nakazawa, Jisaburo Naito, Hiroyuki Horiki 1990-02-20

Frequent Collaborators

Hiroyuki Horiki1 shared
Takao Nakazawa1 shared
Jisaburo Naito1 shared

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