HT

Hiroshi Tokunaga

SO Sony: 29 patents #1,229 of 25,231Top 5%
KC Konishiroku Photo Industry Co.: 14 patents #37 of 894Top 5%
Fujitsu Limited: 8 patents #3,989 of 24,456Top 20%
KO Konica: 4 patents #638 of 1,958Top 35%
FL Fujitsu Media Devices Limited: 4 patents #47 of 136Top 35%
TC Tokyo Juki Industrial Co.: 2 patents #26 of 89Top 30%
NT NTT: 1 patents #2,911 of 4,871Top 60%
GR Graphtec: 1 patents #22 of 62Top 40%
HC Hitachi Keiyo Engineering Co.: 1 patents #46 of 115Top 40%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #39,533 of 4,157,543Top 1%
60
Patents All Time

Issued Patents All Time

Showing 26–50 of 60 patents

Patent #TitleCo-InventorsDate
6631963 Method of driving print head in ink jet printer and ink jet printer Makoto Ando, Yuji Yakura, Toshio Fukuda, Yuichiro Ikemoto 2003-10-14
6494554 Apparatus and method for driving recording head for ink-jet printer Shinichi Horii, Yuichiro Ikemoto, Yasuo Yukita, Masaki Kishimoto, Yuji Yakura +3 more 2002-12-17
6431691 Piezoelectric actuator Toru Tanikawa, Shoto Nishi 2002-08-13
6283568 Ink-jet printer and apparatus and method of recording head for ink-jet printer Shinichi Horii, Tooru Tanikawa, Yuichiro Ikemoto, Masaki Kishimoto, Yasuo Yukita 2001-09-04
6109740 Method and apparatus for supplying ink to a printer Takumi Namekawa, Shinichi Horii 2000-08-29
6095630 Ink-jet printer and drive method of recording head for ink-jet printer Shinichi Horii, Kenji Suzuki, Yuji Yakura, Tooru Tanikawa, Yuichiro Ikemoto 2000-08-01
5826149 Developing device employing a liquid developer and picture forming device having such developing device Shinichi Horii 1998-10-20
5738967 Method of liquid electrophotography by impression/contact development Shinichi Horii, Katusyuki Ogura, Yoshihiro Nishio 1998-04-14
5689786 Image forming apparatus having endless belt photosensitive member in which the solidified developer becomes molten Hideki Matsuzaka, Akira Shirakura 1997-11-18
5424163 Picture recording method using a dispersant having coloring agent particles contained therein Akira Shirakura, Hideki Matsuzaka, Yuichirou Ikemoto, Toshimi Fukuoka, Takashi Mori +4 more 1995-06-13
5357354 Color image processing apparatus capable of discriminating between a monochromatic document and a color document Masahiko Matsunawa, Seiichiro Hiratsuka, Koji Washio, Tadao Kishimoto, Takashi Hasebe 1994-10-18
5251248 Telephone network having personal numbers for position-independent Noriaki Yoshikawa, Takeshi Hattori, Hidetsugu Kobayashi, Yoshiyuki Yasuda, Tatsuo Nohara 1993-10-05
5220416 Color image processing apparatus Takashi Hasebe, Seiichiro Hiratsuka, Tadao Kishimoto, Tetsuya Niitsuma, Koji Washio +1 more 1993-06-15
5195179 Coordinate input apparatus 1993-03-16
4974030 Cleaning device for electrostatic recording apparatus Takaaki Yamanaka, Yoshio Yamazaki 1990-11-27
4933721 Image forming apparatus with preconditioning exposure selectively forming a multi-color and mono-color image Kazuo Yasuda, Kumiko Izawa 1990-06-12
4910535 Image forming apparatus Kunihisa Yoshino, Kimio Nishizawa, Toshihiro Takesue 1990-03-20
4816900 Method of separation and formation of a color component of a color image and apparatus therefor Jun Hamada, Masakazu Fukuchi 1989-03-28
4692871 Input device for sewing machine Tomoaki Kinoshita, Kunio Takano, Masanori Nukushina, Minoru Wada 1987-09-08
4674860 Image transfer device Shinobu Soma, Naoki Aoki, Tatsufumi Kusuda 1987-06-23
4610210 Sewing machine Tomoaki Kinoshita, Kunio Takano, Minoru Wada, Osamu Tachikawa 1986-09-09
4600685 Patterning process using ladder-type organosiloxane resin and process for production of electronic devices utilizing said patterning process Toshisuke Kitakohji, Shiro Takeda, Minoru Nakajima 1986-07-15
4562447 Ion modulating electrode Noriyoshi Tarumi, Haruo Iwahashi, Masahiko Matsunawa 1985-12-31
4495508 Electrostatic reproducing apparatus Noriyoshi Tarumi, Haruo Iwahashi, Masahiko Matsunawa 1985-01-22
4488160 Electrostatic apparatus Noriyoshi Tarumi, Haruo Iwahashi, Masahiko Matsunawa 1984-12-11