MI

Masakazu Ishikawa

TO Toyota: 15 patents #1,771 of 26,838Top 7%
HI Hitachi: 9 patents #4,653 of 28,497Top 20%
HS Hitachi Information & Control Solutions: 5 patents #6 of 68Top 9%
LI Lintec: 5 patents #96 of 514Top 20%
Aisin Seiki Kabushiki Kaisha: 4 patents #844 of 3,782Top 25%
HH Hitachi Mitsubishi Hydro: 2 patents #4 of 24Top 20%
SI Sanyo Chemical Industries: 1 patents #242 of 607Top 40%
Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%
HP Hitachi Industrial Products: 1 patents #30 of 86Top 35%
HU Hiroshima University: 1 patents #158 of 421Top 40%
HS Hitachi Industry & Control Solutions: 1 patents #26 of 84Top 35%
📍 Hiroshima, JP: #9 of 35 inventorsTop 30%
Overall (All Time): #110,445 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
4321590 Check mechanism for fluid level warning device in fluid reservoirs Harumi Ohori, Takashi Kiriyama 1982-03-23
4296841 Antirattle spring for a disc brake of vehicles Fumio Fujimori, Masatada Yokoi, Hiroshi Uemura, Akira Shirai 1981-10-27
4214648 Vehicle disc brake Toyoaki Kobayashi 1980-07-29
4214649 Antirattle spring for a disc brake of vehicles Fumio Fujimori, Masatada Yokoi, Hiroshi Uemura, Akira Shirai 1980-07-29
4210343 Automotive suspension system Masanao Shiomi, Hiroshi Kato 1980-07-01
4207971 Rust preventing device for a rotor of a disc brake Hiroyuki Oka, Juichi Shibatani, Yuichiro Obu 1980-06-17
4188073 Anti-vibration apparatus for a vehicle brake system Juichi Shibatani, Sadayoshi Ito 1980-02-12