HS

Hidehisa Shiratori

MM Mitsubishi Materials: 4 patents #258 of 1,543Top 20%
MM Mitsubishi Metal: 2 patents #18 of 150Top 15%
Overall (All Time): #890,962 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5294219 Ball end mill Tatsuo Arai, Masayuki Okawa 1994-03-15
5197831 Cutting insert for ball end mill Tatsuo Arai, Masayuki Okawa 1993-03-30
5090849 Rotary cutting tool Tatsuo Arai, Katsumi Haga, Takayoshi Saito, Ryoei Hasegawa, Kazuo Iizuka 1992-02-25
5082400 Insert rotary cutter Masaaki Nakayama 1992-01-21
5026221 Rotary cutting tool Tatsuo Arai, Ryoei Hasegawa, Kazuo Iizuka 1991-06-25
5017060 Rotary cutting tool Kazuo Iizuka 1991-05-21