YF

Yoshihiro Fujiwara

Ricoh Company: 29 patents #656 of 9,818Top 7%
Sumitomo Electric Industries: 4 patents #6,367 of 21,551Top 30%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
CI Corning Incorporated: 1 patents #2,300 of 3,867Top 60%
NI Ngk Insulators: 1 patents #1,271 of 2,083Top 65%
Overall (All Time): #87,801 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
8238801 Developing device, process cartridge, method and image forming apparatus for developing an electrostatic latent image on an image carrier Yasuo Miyoshi, Takuya Seshita, Norio Kudo 2012-08-07
7616229 Surveillance camera apparatus Jouji Wada, Tetsurou Kajino, Gil Palma Guerrero, Jr. 2009-11-10
7610004 Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image Shinji Kato, Yuuji Sawai, Hiromi Ogiyama, Shin Kayahara, Atsushi Takehara +1 more 2009-10-27
7497632 Camera device Tetsurou Kajino, Jyouji Wada, Takayuki Shimaoka 2009-03-03
7280792 Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same Yuuji Sawai, Shin Kayahara, Hiromi Ogiyama, Atsushi Takehara, Ken Yoshida +1 more 2007-10-09
7203433 Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image Shinji Kato, Yuuji Sawai, Hiromi Ogiyama, Shin Kayahara, Atsushi Takehara +1 more 2007-04-10
7101095 Rotation type camera apparatus Tetsurou Kajino, Jouji Wada, Gil Palma Guerrero, Jr. 2006-09-05
7003238 Intermediate image transfer device for a color image forming apparatus Ken Yoshida, Yuuji Sawai, Hiromi Ogiyama, Atsushi Takehara, Shin Kayahara +1 more 2006-02-21
6890110 Rotation type camera apparatus Tetsurou Kajino, Jouji Wada, Gil Palma Guerrero, Jr. 2005-05-10
5427601 Sintered metal bodies and manufacturing method therefor Takashi Harada, Fumio Abe, Tsuneaki Ohashi, Hiroshige Mizuno, Kevin R. Brundage +4 more 1995-06-27
4665325 Solid state image sensor with signal amplification Takahiro Yamada 1987-05-12
4435842 Programmable channel selecting apparatus Kuzuaki Mayumi, Toshio Tokuda, Toshiaki Suzuki 1984-03-06