YK

Yasuhiko Kachi

FU Fujifilm: 43 patents #98 of 4,519Top 3%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
Overall (All Time): #54,423 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
D620974 Printer Norihisa Takada, Masaki Kataoka 2010-08-03
7758136 Ink supply device for inkjet printer 2010-07-20
7717548 Ink container and ink jet recording apparatus Setsuji Tatsumi, Yoshihiro Ito, Satoru Okamoto 2010-05-18
7708368 Method for evaluating color mixing, image recording method, and image recording apparatus 2010-05-04
7690749 Method for evaluating bleeding, and image recording method and apparatus 2010-04-06
D610607 Inkjet recording device Norihisa Takada, Yoshihira Rai, Atsumichi Imazeki, Masaki Kataoka, Tadashi Suzuki +1 more 2010-02-23
7651202 Liquid ejection head and image forming apparatus Seiichiro Oku, Toshiya Kojima 2010-01-26
7648230 Ink supply device, ink jet recording apparatus and ink cartridge 2010-01-19
7621622 Liquid ejection head 2009-11-24
7614712 Image recording apparatus 2009-11-10
7568782 Liquid ejection apparatus and image forming apparatus Tsutomu Takatsuka 2009-08-04
7553004 Ink-jet recording apparatus, ink container, and method of filling ink container 2009-06-30
7543922 Liquid supply apparatus and method, and inkjet recording apparatus 2009-06-09
7488058 Ink container and ink jet recording apparatus Satoru Okamoto, Yoshihiro Ito, Setsuji Tatsumi 2009-02-10
7467845 Image forming apparatus Tsutomu Takatsuka 2008-12-23
7380903 Inkjet recording apparatus, and ink discharge surface cleaning method and device 2008-06-03
7377632 Image recording apparatus 2008-05-27
7364278 Inkjet recording apparatus Tetsuzo Kadomatsu 2008-04-29
7347531 Inkjet recording head and image formation apparatus 2008-03-25
7334862 Image forming apparatus for performing restoration process 2008-02-26
7316474 Surface treatment apparatus and image recording apparatus Setsuji Tatsumi, Hiroshi Ishizuka, Eiichi Kito 2008-01-08
7207639 Image recording apparatus and method 2007-04-24
7172263 Image forming apparatus Tsutomu Takatsuka, Hiroshi Inoue, Toshiya Kojima 2007-02-06
6021972 Sheet material winding core Yuji Inoue, Toshiya Kojima 2000-02-08
5913182 Take-up device Yuji Inoue, Toshiya Kojima, Yasuyuki Mochizuki 1999-06-15