Tetsuo Amawa — 2 Patents at Kabushiki Kaisha Risuron

Tetsuo Amawa has been granted 2 US patents while listed as an inventor at Kabushiki Kaisha Risuron. The first was granted in 1989 and the most recent in August 1990. Tetsuo Amawa ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Tetsuo Amawa in Kasukabe, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4952265	Mat consisting of filament loop aggregations and method and apparatus for producing the same	Minoru Yamanaka	1990-08-28
4859516	Mat consisting of filament loop aggregations and method and apparatus for producing the same	Minoru Yamanaka	1989-08-22

Tetsuo Amawa — 2 Patents

Issued Patents All Time

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