HT

Hiroki Tajima

Canon: 77 patents #260 of 19,416Top 2%
KM Konica Minolta: 15 patents #104 of 2,718Top 4%
KM Konica Minolta: 6 patents #346 of 1,361Top 30%
Ricoh Company: 2 patents #5,693 of 9,818Top 60%
TC Tohoku Ricoh Co.: 2 patents #69 of 204Top 35%
📍 Yokohama, JP: #84 of 480 inventorsTop 20%
Overall (All Time): #14,823 of 4,157,543Top 1%
99
Patents All Time

Issued Patents All Time

Showing 76–99 of 99 patents

Patent #TitleCo-InventorsDate
6250752 Ink supply device and ink-jet recording head with filter and shaped flow passage Seiichiro Karita 2001-06-26
6206513 Ink tank unit, an ink jet cartridge having said ink tank unit and an ink jet apparatus having said ink jet cartridge Toshio Kashino, Masahiko Higuma, Takeshi Okazaki 2001-03-27
6206514 Ink tank unit, an ink jet cartridge having said ink tank unit and an ink jet apparatus having said ink jet cartridge Toshio Kashino, Masahiko Higuma, Takeshi Okazaki 2001-03-27
6179416 Exchangeable ink cartridge Masami Ikeda, Sadayuki Sugama, Tsutomu Abe, Toshio Kashino, Masahiko Higuma +1 more 2001-01-30
6179415 Ink tank cartridge Takeshi Okazaki, Masami Ikeda, Tsutomu Abe, Toshio Kashino, Masahiko Higuma +2 more 2001-01-30
6168254 Ink jet recording apparatus Seiichiro Karita, Masaki Inaba, Yutaka Koizumi, Tsuyoshi Orikasa, Toshio Kashino +7 more 2001-01-02
6132036 Ink tank, production process of ink tank and ink-jet printing apparatus Tsutomu Abe, Yutaka Koizumi, Kiyomi Aono, Seiichiro Karita, Kouichi Omata 2000-10-17
6062666 Ink jet recording method and apparatus beginning driving cycle with discharge elements other than at ends of substrates Kouichi Omata, Yutaka Koizumi, Toshio Kashino, Seiichiro Karita, Haruhiko Terai +1 more 2000-05-16
6045218 Ink cartridge Masami Ikeda, Tsutomu Abe, Toshio Kashino, Masahiko Higuma, Takeshi Okazaki 2000-04-04
5988792 Ink jet apparatus and cartridge having a structure for rubbing a cleaning blade Takeshi Okazaki, Kazuaki Masuda, Tsutomu Abe, Toshio Kashino, Jun Kawai 1999-11-23
5953031 Ink tank with ink container and waste ink container Kouichi Omata, Yutaka Koizumi, Kiyomi Aono, Tsutomu Abe, Seiichiro Karita +1 more 1999-09-14
5867200 Print head, and print pre-heat method and apparatus using the same Yutaka Koizumi, Toshio Kashino, Seiichiro Karita, Haruhiko Terai, Kouichi Omata +1 more 1999-02-02
5826333 Method of manufacturing an ink jet head Masaru Iketani, Yutaka Koizumi, Toshio Kashino, Seiichiro Karita, Haruhiko Terai +3 more 1998-10-27
5790157 Ink filling method and apparatus for ink cartridge Masahiko Higuma, Masami Ikeda, Sadayuki Sugama, Tsutomu Abe, Hiroyuki Ishinaga +2 more 1998-08-04
5748213 Ink jet head having plural elemental substrates, apparatus having the ink jet head, and method for manufacturing the ink jet head Seiichiro Karita, Hiroshi Sugitani, Yutaka Koizumi, Toshio Kashino, Haruhiko Terai +5 more 1998-05-05
5742309 Ink cartridge Masami Ikeda, Tsutomu Abe, Toshio Kashino, Masahiko Higuma, Takeshi Okazaki 1998-04-21
5701995 Packing case and opening method therefor Masahiko Higuma, Masami Ikeda, Naohito Asai, Tsutomu Abe, Toshio Kashino +3 more 1997-12-30
D375975 Printing head Yutaka Koizumi, Toshio Kashino, Seiichiro Karita, Kiyomi Aono, Kouichi Omata 1996-11-26
D363507 Ink cartridge for printer Toshio Kashino 1995-10-24
D363508 Ink cartridge for printer Toshio Kashino 1995-10-24
D353997 Container Toshio Kashino 1995-01-03
5361087 Liquid jet unit with orifices and recording apparatus using the same Kazuaki Masuda, Takashi Watanabe, Akira Goto 1994-11-01
4820005 Method of fixing a polygon mirror and an optical deflector having such polygon mirror Yoshio Hashimoto 1989-04-11
4726640 Optical deflector with a pneumatic and a magnetic bearing Akihiko Iwama, Mitsuo Suzuki 1988-02-23