TY

Toru Yamakawa

SU Subaru: 13 patents #40 of 1,436Top 3%
SO Sony: 2 patents #12,963 of 25,231Top 55%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
SC Sumitomo Cement Co.: 1 patents #32 of 113Top 30%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
ZG Zexel Gmbh: 1 patents #175 of 348Top 55%
Overall (All Time): #279,251 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
7170550 Television data management system 2007-01-30
5642715 Distributor type fuel injection pump Ken'ichi Kubo, Hiroshi Ishiwata, Jun Matsubara 1997-07-01
5248486 Device, agent and process for medical waste sterilization Akira Matsuoka, Koichi Mimura, Masayuki Matsumoto, Masaru Matsunami, Kozo Mizutani +2 more 1993-09-28
4897752 Disk cartridge Hajime Doi, Fujio Matsumoto, Kunio Mizushima 1990-01-30
4840246 Power transmission control system for a four-wheel drive vehicle Fujio Makita, Mitsuo Umezawa, Ryuzo Sakikiyama 1989-06-20
4662490 Clutch system for an internal combustion engine provided with a plurality of engine units 1987-05-05
4630704 System for controlling a power transmission of a four-wheel drive vehicle Fujio Makita, Mitsuo Umezawa, Ryuzo Sakakiyama 1986-12-23
4617840 System for controlling a power transmission of a four-wheel drive vehicle Fujio Makita, Mitsuo Umezawa, Ryuzo Sakakiyama 1986-10-21
4586583 System for controlling a power transmission of a four-wheel drive vehicle Fujio Makita, Mitsuo Umezawa, Ryuzo Sakakiyama 1986-05-06
4576061 System for controlling the transmission of a four-wheel drive vehicle Fujio Makita, Mitsuo Umezawa, Ryuzo Sakakiyama 1986-03-18
4560021 Control system for a plurality of engine units 1985-12-24
4512301 Internal combustion engine provided with a plurality of power units 1985-04-23
4493190 Cooling system for an engine having a plurality of engine units 1985-01-15
4480612 Internal combustion engine provided with a plurality of power units 1984-11-06
4442805 Internal combustion engine provided with a plurality of power units 1984-04-17
4439989 Internal combustion engine provided with a plurality of power units 1984-04-03
4430862 Internal combustion engine for vehicles 1984-02-14