TK

Takao Koyama

ML Mitsubishi Pencil Company, Limited: 12 patents #15 of 302Top 5%
KA Kao: 7 patents #452 of 3,221Top 15%
Nissan Motor Co.: 7 patents #1,071 of 8,689Top 15%
HD Hitachi Denshi: 1 patents #119 of 275Top 45%
MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%
Yamaha: 1 patents #1,232 of 2,001Top 65%
📍 Fujioka, JP: #5 of 89 inventorsTop 6%
Overall (All Time): #132,099 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4974715 Oil passages of torque converter 1990-12-04
4949821 Automatic transmission Kazuya Murota 1990-08-21
4916899 Stator shaft connection through oil pump of automatic transmission Kazuhiko Sugano 1990-04-17
4863649 Process for producing carbon heat generator Takamasa Kawakubo 1989-09-05