KK

Kazuaki Koyama

SC Sanyo Electric Co.: 5 patents #1,180 of 6,347Top 20%
MM Mitsubishi Motors: 3 patents #352 of 1,823Top 20%
Kubota: 1 patents #1,212 of 2,059Top 60%
ME Mitsubishi Jidosha Engineering: 1 patents #75 of 277Top 30%
Overall (All Time): #535,609 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12286095 Hybrid system Ryota Kimura, Koichi Funaki, Yasuo Fujii, Tamotsu Kuno 2025-04-29
10648398 Intake structure of internal combustion engine Akira Yoshihara, Koichi Matsumoto, Shigeki Nabetani, Yuya Okamoto 2020-05-12
10227947 Cylinder head for vehicle engine Yuya Okamoto, Akira Yoshihara, Norio Takayasu, Genki Takahashi 2019-03-12
8511272 Accessory mounting structure Sumito HORI, Satoshi Matsui 2013-08-20
4891878 Method of making a magnetic head Yoshihiko Kawai 1990-01-09
4811147 Magnetic head incorporating a glass composition of barium oxide and phosphorous pentaoxide Yoshihiko Kawai, Isao Yasuda 1989-03-07
4807075 Magnetic head Yoshihiko Kawai, Isao Yasuda 1989-02-21
4475137 Magnetic transducer Isao Yasuda, Yorinobu Yoshisato, Yoshihiko Kawai 1984-10-02
4404608 Magnetic head with an improved inner core Isao Yasuda, Yoshihiko Kawai 1983-09-13