KW

Kenjiro Watanabe

Canon: 92 patents #139 of 19,416Top 1%
SO Sony: 13 patents #3,381 of 25,231Top 15%
📍 Kawachi, JP: #1 of 19 inventorsTop 6%
Overall (All Time): #12,991 of 4,157,543Top 1%
106
Patents All Time

Issued Patents All Time

Showing 76–100 of 106 patents

Patent #TitleCo-InventorsDate
D355212 Printing head for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1995-02-07
D355213 Ink cartridge for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1995-02-07
D355215 Ink cartridge for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1995-02-07
D352061 Printing head for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1994-11-01
D352058 Printing head body for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Koji Yamakawa, Kazuhiro Nakajima +4 more 1994-11-01
D352060 Ink cartridge for printer Hidemi Kubota, Toshihiko Ujtia, Torachika Osada, Kayomi Sato 1994-11-01
D352059 Ink cartridge for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1994-11-01
D351856 Printing head body for printer Yasuo Kotaki, Masanori Takenouchi 1994-10-25
D351855 Ink cartridge for printer Hidemi Kubota, Toshihiko Ujita, Torachika Osada, Kayomi Sato 1994-10-25
5339098 Liquid discharge recording apparatus having apparatus for effecting preparatory emission Akira Nagatomo, Yoshifumi Hattori, Isao Ebisawa, Tsutomu Abe, Takashi Ohba +1 more 1994-08-16
D348480 Ink cartridge for printer Toshihiko Ujita, Yasuo Kotaki, Kazuhiro Nakazima 1994-07-05
D348479 Ink cartridge for printer Toshihiko Ujita, Yasuo Kotaki, Kazuhiro Nakazima, Koji Yamakawa, Torachika Osada +5 more 1994-07-05
5319389 Method of abnormal state detection for ink jet recording apparatus Kazue Ikeda, Toshihiko Ujita 1994-06-07
D341620 Ink cartridge for printer Toshihiko Ujita, Kayomi Sato, Masanori Takenouchi 1993-11-23
D341619 Ink cartridge for printer Toshihiko Ujita, Kayomi Sato, Masanori Takenouchi 1993-11-23
D338911 Printing head for printer Toshihiko Ujita, Koji Yamakawa, Kayomi Sato, Masanori Takenouchi 1993-08-31
D338489 Printing head for printer Toshihiko Ujita, Koji Yamakawa, Kayomi Sato, Masanori Takenouchi 1993-08-17
D338234 Printing head for printer Yasuo Kotaki, Toshihiko Ujita 1993-08-10
5175565 Ink jet substrate including plural temperature sensors and heaters Hiroyuki Ishinaga, Masami Ikeda, Ryoichi Koizumi, Asao Saito, Tsutomu Abe +5 more 1992-12-29
D327908 Circuit base for ink jet printer head Masami Ikeda, Seiichiro Karita 1992-07-14
5033857 Method of transforming light-source color data and non-luminous object color data Junichi Kubota, Naoki Hasegawa, Masahiro Furuhata 1991-07-23
5021809 Ink jet recording device with pressure-fluctuation absorption Tsutomu Abe, Isao Ebisawa, Seiichiro Karita 1991-06-04
5018119 Method for reproducing signal using an external magnetic field from magneto-optical recording medium having three magnetic layers Katsuhisa Aratani, Minoru Kohno 1991-05-21
D314006 Printing head for ink jet printer Tsutomu Abe 1991-01-22
4866462 Liquid jet recording apparatus capable of being driven at selected different frequencies 1989-09-12