YI

Yoshiaki Igarashi

Sumitomo Electric Industries: 24 patents #740 of 21,551Top 4%
PW Precision Fukuhara Works: 8 patents #4 of 40Top 10%
DK Daiichi Denshi Kogyo Kabushiki Kaisha: 8 patents #2 of 50Top 4%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
BR Bunker Ramo: 2 patents #21 of 110Top 20%
WC Warner-Lambert Company: 1 patents #930 of 1,610Top 60%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
IC Iwatsu Electric Co.: 1 patents #87 of 212Top 45%
MC Matsushit Electric Industrial Co.: 1 patents #13 of 293Top 5%
MS Mitsubishi Hitachi Power Systems: 1 patents #495 of 970Top 55%
TC Tohoku Electric Power Company: 1 patents #65 of 246Top 30%
📍 Rifu, JP: #38 of 2,101 inventorsTop 2%
Overall (All Time): #52,938 of 4,157,543Top 2%
51
Patents All Time

Issued Patents All Time

Showing 26–50 of 51 patents

Patent #TitleCo-InventorsDate
5201675 Miniature multiple electrical connector Yukio Saitoh, Fumio Furuya, Akio Yamada 1993-04-13
5177985 Collector/remover of dust of flocks in knitting machine Kosaku Iida 1993-01-12
5120244 Insulation-piercing connector Yukio Saito 1992-06-09
5062696 Camera apparatus Mitsuaki Oshima, Masataka Izaki, Jirou Kajino, Hiroshi Mitani 1991-11-05
5020890 Camera apparatus with fluctuation suppressing means Mitsuaki Oshima, Masataka Izaki, Jirou Kajino, Hiroshi Mitani 1991-06-04
4920836 Two blade type impulse wrench Tadakatsu Sugimoto, Shiro Saito, Eiichi Wada, Keiji Murai 1990-05-01
4890464 Positive feeding device for circular knitting machine Koji Tsuchiya 1990-01-02
D305265 Razor handle for use with a cartridge Vincent C. Motta, Hiromasa Yasui 1989-12-26
4856882 Camera apparatus with means for suppressing fluctuations of the image Mitsuaki Oshima, Masataka Izaki, Jirou Kajino, Hiroshi Mitani 1989-08-15
4843221 Electronic card receiving device Tomonari Ohtsuki, Toru Uno, Yoshiaki Tanaka 1989-06-27
4766787 Two-blade type impulse wrench Tadakatsu Sugimoto, Shiro Saito, Eiichi Wada, Keiji Murai 1988-08-30
4717361 Contact for connector Hiroo Ohtsuka, Osamu Hara 1988-01-05
4713697 Camera apparatus Makoto Gotou, Hiroshi Mitani 1987-12-15
4636696 Servo system Hiroshi Minakuchi, Tadashi Kunihira 1987-01-13
4633150 Driving circuit for brushless DC motors Toshio Inaji, Hiroshi Minakuchi 1986-12-30
4623930 Camera apparatus Mitsuaki Oshima, Masataka Izaki, Jirou Kajino, Hiroshi Mitani 1986-11-18
4575171 Connector connectable and disconnectable without force Shoichi Hamano 1986-03-11
4484235 Phase control circuit and magnetic reproducing apparatus using the same Nobuyoshi Yokobori, Masashi Urayama 1984-11-20
4472666 Brushless DC motor Takafumi Akeda, Makoto Gotou, Yoshiteru Hosokawa 1984-09-18
4404481 Capacitance to voltage conversion apparatus Toshimine Ide, Takeshi Shimamoto 1983-09-13
4395682 Differential output circuit Nobuyoshi Yokobori, Tetsuo Maeda 1983-07-26
4393422 Device for driving magnetic tape Nobuyoshi Yokobori, Masashi Urayama, Hiroshi Okamoto 1983-07-12
4350409 Connector keying device Matsuo Kato, Tomonari Ohtsuki, Tsukasa Saito, Toshiaki Suzuki 1982-09-21
4344023 Drive system for a brushless DC motor Nobuyoshi Yokobori, Tetsuo Maeda 1982-08-10
4211967 Motor speed adjusting apparatus Ryo Akiyama 1980-07-08