YH

Yoshio Hattori

Ricoh Company: 59 patents #144 of 9,818Top 2%
NC Niles Parts Co.: 6 patents #8 of 137Top 6%
SI Seiko Instruments: 3 patents #474 of 1,437Top 35%
SE Seiko Instruments & Electronics: 1 patents #72 of 164Top 45%
TE Toyo Electric: 1 patents #2 of 6Top 35%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #28,655 of 4,157,543Top 1%
71
Patents All Time

Issued Patents All Time

Showing 51–71 of 71 patents

Patent #TitleCo-InventorsDate
6826381 Image formation device and agent supplying device including absorber conveying by negative pressure Satoshi Muramatsu, Hideo Yoshizawa, Hideki Kimura, Kazuhisa Sudo, Junichi Matsumoto 2004-11-30
6813460 Toner container and image forming apparatus using the same Kazuhisa Sudo 2004-11-02
6775503 Image forming apparatus with improved capabilities for toner supply Takaaki Yanagisawa, Kazuhisa Sudo 2004-08-10
6665508 Toner container and image forming apparatus using the same Kazuhisa Sudo 2003-12-16
6628908 Toner supply unit and image forming apparatus Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more 2003-09-30
6591077 Image forming apparatus and toner container therefor Takaaki Yanagisawa, Tomotoshi Nakahara, Masumi Sato, Kazuhisa Sudo, Kouta Fujimori 2003-07-08
6507720 Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor Masaaki Kabumoto, Goro Katsuyama, Kanae Amemiya, Masahiro Kurita, Masahiro Yonekawa +6 more 2003-01-14
6501913 Container, its support structure, and image formation apparatus Tomotoshi Nakahara, Takaaki Yanagisawa, Kazuhisa Sudo, Kouta Fujimori, Masumi Sato 2002-12-31
6393241 Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner Junichi Matsumoto, Nobuo Kasahara, Satoshi Muramatsu, Nobuo Iwata, Takaaki Yanagisawa +4 more 2002-05-21
5847342 Combination switch apparatus equipped with rotary connector Norio Uchiyama 1998-12-08
5804784 Lever switch apparatus Norio Uchiyama 1998-09-08
5780796 Mounting construction of a combination switch Norio Uchiyama 1998-07-14
5747763 Fitting structure of rotary connector and switch Norio Uchiyama 1998-05-05
5672855 Canceling mechanism for a vehicular turn signal switch Norio Uchiyama 1997-09-30
5128745 Semiconductor device with thin film resistor Hiroaki Takasu 1992-07-07
5008738 Semiconductor variable capacitance element 1991-04-16
4821001 Circuit oscillator 1989-04-11
4816894 Semiconductor variable capacitance element 1989-03-28
4571470 Turn signal switching device 1986-02-18
4535274 Driving circuit for brushless D.C. motor Isamu Suzuki 1985-08-13
4196322 Rear window washer wiper operating switch 1980-04-01