Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HK

Hitotoshi Kimura — 171 Patents

SESeiko Epson: 170 patents #6 of 7,774Top 1%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Overall (All Time): #4,730 of 4,157,543Top 1%
171 Patents All Time

Issued Patents All Time

Showing 151–171 of 171 patents

Patent #TitleCo-InventorsDate
7097294 Liquid container, liquid ejection device and liquid container case Taku Ishizawa, Takeo Seino 2006-08-29
7077513 Ink jet recording apparatus, control and ink replenishing method executed in the same, ink supply system incorporated in the same, and method of managing ink amount supplied by the system Nobuhito Takahashi, Shuhei Harada, Atsushi Kobayashi, Hidekazu Mizuno, Taku Ishizawa 2006-07-18
D524855 Ink cartridge for printer Taku Ishizawa, Tetsu Nakayama, Takeo Seino 2006-07-11
D522049 Ink cartridge for printer Taku Ishizawa, Tetsu Nakayama, Takeo Seino 2006-05-30
7048363 Ink-jet recording apparatus Atsushi Kobayashi 2006-05-23
7018029 Liquid container and liquid ejection apparatus Taku Ishizawa 2006-03-28
D513417 Ink pack Taku Ishizawa, Takeo Seino 2006-01-03
6913350 Ink-jet recording apparatus Atsushi Kobayashi 2005-07-05
6883905 Ink jet recording apparatus, control and ink replenishing method executed in the same, ink supply system incorporated in the same, and method of managing ink amount supplied by the system Nobuhito Takahashi, Shuhei Harada, Atsushi Kobayashi, Hidekazu Mizuno, Taku Ishizawa 2005-04-26
6874876 Ink cartridge for use with recording apparatus and ink jet recording apparatus Taku Ishizawa, Atsushi Kobayashi, Yoshiharu Aruga 2005-04-05
6846062 Ink jet recording apparatus and cleaning control method for recording head incorporated therein Shuhei Harada, Hisashi Miyazawa, Hitoshi Hayakawa, Atsushi Kobayashi, Yoshiharu Aruga 2005-01-25
6840604 Ink jet recording apparatus, control and ink replenishing method executed in the same, ink supply system incorporated in the same, and method of managing ink amount supplied by the system Nobuhito Takahashi, Shuhei Harada, Atsushi Kobayashi, Hidekazu Mizuno, Taku Ishizawa 2005-01-11
6834945 Ink cartridge for use with recording apparatus and ink jet recording apparatus Taku Ishizawa, Atsushi Kobayashi, Yoshiharu Aruga 2004-12-28
6796627 Ink jet recording apparatus, method of replenishing ink to subtank in the apparatus, and method of checking the replenished amount of ink Atsushi Kobayashi, Noboru Tamura, Hiroaki Tojyo, Yoshiharu Aruga, Minoru Usui +3 more 2004-09-28
6733114 Ink-jet recording apparatus Atsushi Kobayashi 2004-05-11
6390611 Ink jet recording apparatus, sub-tank unit adapted thereto, and ink droplet ejection capability recovery method Atushi Kobayashi, Satoshi Shinada, Takahiro Naka, Takeo Seino, Hisashi Miyazawa +2 more 2002-05-21
6386672 Ink jet type recording head Ryoichi Tanaka, Tomoaki Takahashi, Tsuyoshi Kitahara, Noriaki Okazawa, Kenji Otokita +4 more 2002-05-14
6378971 Ink-jet recording apparatus Noboru Tamura, Hiroaki Tojyo, Atsushi Kobayashi, Yoshiharu Aruga, Takashi Mano 2002-04-30
6321028 Optical disk recording/reproduction apparatus for recording/reproducing information to/from optical disk of different standards Seiji Kajiyama, Yoichi Tsuchiya, Yasuyuki Kanou, Shuichi Ichiura, Toshio Harada +1 more 2001-11-20
6296351 Ink jet recording head with narrowed reservoir ends Ryoichi Tanaka, Tsuyoshi Kitahara, Noriaki Okazawa, Takayuki Iijima 2001-10-02
5992976 Ink-jet printhead Hiroshi Arai 1999-11-30