CI

Chuji Ishikawa

Ricoh Company: 17 patents #1,283 of 9,818Top 15%
OL Origin Electric Company, Limited: 1 patents #42 of 128Top 35%
TC Tohoku Ricoh Co.: 1 patents #101 of 204Top 50%
Overall (All Time): #279,129 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
7363859 Temperature detecting unit with fixing apparatus Hidenori Itoh 2008-04-29
7040806 Temperature detecting unit and fixing apparatus Hidenori Itoh 2006-05-09
6595907 Heat roller for a fixing device Takayuki Kuga, Yasuhiro Genjima, Haruo Ninomiya, Youichi Ueda, Kazunori Kon 2003-07-22
5132740 Waste toner collecting device for an image recorder Keiji Okamoto 1992-07-21
4847631 Charge and deflection control type ink jet printer Osamu Naruse, Sadao Kakeno, Satoshi Sekimoto, Masanori Horike 1989-07-11
4800398 Ink-jet printer with an encased printer head unit Osamu Naruse, Sadao Kakeno, Kyuhachiro Iwasaki 1989-01-24
4739347 Ink supply system for use in an ink-jet printer Michio Umezawa 1988-04-19
4672390 Ink jet printer carriage assembly 1987-06-09
4630814 Sheet feed apparatus for printer Toshio Kawakubo, Shizuo Yokoyama 1986-12-23
4628331 Ink mist collection apparatus for ink jet printer 1986-12-09
4611216 Charged ink particles detection housing Shigeyuki Araki 1986-09-09
4520367 Ink jet head assembly Kyuhachiro Iwasaki, Masanori Horike, Hiromichi Komai 1985-05-28
4502055 Ink jet deaeration apparatus Masanori Horike 1985-02-26
4437101 Ink jet printing apparatus Yutaka Ebi, Takao Fukazawa, Toshio Kawakubo, Koichiro Jinnai, Masanori Horike +2 more 1984-03-13
4430658 Apparatus for detecting deflection of a charged ink droplet. Takao Fukazawa 1984-02-07
4258372 Small clearance retention apparatus 1981-03-24
4257054 Recording apparatus 1981-03-17