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Hirowo Inoue, Hisashi Ishikawa, Hiroshi Tajika, Miyuki Fujita, Yuji Konno, Kenji Takahashi, Norihiro Kawatoko: Image forming system and images forming apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, August 14, 2001: US06273535 (168 worldwide citation)

When an image is sensed by a digital camera, image additional information as image sensing conditions is stored together with the sensed image information. Also, information unique to that digital camera is stored together with the image additional information. The digital camera is connected to a p ...


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Atsushi Arai, Hiromitsu Hirabayashi, Hiroshi Tajika, Noribumi Koitabashi: Ink jet recording with head driving condition regulation. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, January 12, 1993: US05179389 (121 worldwide citation)

An ink jet recording apparatus provided with an ink jet recording head connected to an ink tank and having ink discharge ports and energy generating members for generating ink discharge energy, in which the head pressure of ink at the discharge ports is detected and the driving condition of the ener ...


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Hisashi Ishikawa, Hiroshi Tajika, Miyuki Fujita, Yuji Konno, Hiroo Inoue, Kenji Takahashi, Norihiro Kawatoko: Power control system and method for distribution of power to peripheral devices. Canon Kabushiki Kaisha, Morgan & Finnegan L, February 25, 2003: US06526516 (112 worldwide citation)

In a system to which a plurality of devices are connected, each device has heretofore required a connector for an AC adapter and a connector for a signal line. Further, in order to arrange it so that the amount of power supplied to the overall system will not exceed a limit value, it has been requir ...


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Kazuyoshi Takahashi, Naoji Otsuka, Tokihide Ebata, Hiromitsu Hirabayashi, Hiroshi Tajika, Noribumi Koitabashi, Atsushi Arai, Kenji Aono, Hitoshi Sugimoto: Fixater and recording apparatus using the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, March 26, 1996: US05502464 (89 worldwide citation)

A fixater has a fixing unit for expediting the fixation of an image recorded on a recording medium, a conveying unit for conveying the recording medium and a coupling unit detachably mountable in the mounting section of a cassette for stacking the recording medium for the recording apparatus. The fi ...


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Hiroshi Tajika, Hiromitsu Hirabayashi, Atsushi Arai, Noribumi Koitabashi, Yoshiaki Takaynagi: Ink jet with residual ink detection that compensates for different ink properties. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 10, 1992: US05162817 (86 worldwide citation)

An ink jet recording apparatus comprises an ink jet head having an ink path communicating with a discharge opening for discharging ink; electrodes arranged in said ink path; a residual ink quantity detection means for detecting residual ink quantity in said ink path in accordance with a resistance v ...


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Hiroshi Tajika, Noribumi Koitabashi, Atsushi Arai, Hiromitsu Hirabayashi: Image recording method and apparatus therefor. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, August 25, 1992: US05142374 (57 worldwide citation)

In order to record an image having an excellent gradient by using inks of different densities, image data for dark ink and light ink are generated in accordance with the received image data. The generated data for dark ink is converted into a binary signal which is suitable for reproducing the resol ...


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Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Souhei Tanaka: Ink jet recording apparatus and method using replaceable recording heads. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 29, 1997: US05625384 (57 worldwide citation)

Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with ...


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Tetsuhiro Maeda, Hiroshi Tajika, Atsushi Ushiroda, Miyuki Fujita, Yuji Konno, Norihiro Kawatoko, Takayuki Ogasahara, Tetsuya Edamura: Ink jet printing apparatus and ink jet printing method for forming an image on a print medium. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 5, 2005: US06874864 (55 worldwide citation)

An apparatus and method are provided to enable high speed printing of an image with high resolution while suppressing degradation of image quality due to white stripes and density variations. In an ink jet printing apparatus using a multi-pass printing system, the same scan print area is divided at ...


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Hiroshi Tajika, Noribumi Koitabashi, Atsushi Arai, Hiromitsu Hirabayashi: Ink jet recording by superimposing inks of different densities. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 16, 1999: US05984449 (54 worldwide citation)

This invention is a recording head cartridge which includes a plurality of inks having a density difference for an ink of one color, includes recording heads on a single substrate or in an adjacent aligned state, and integrates ink tanks for the plurality of inks, so as to reliably perform gradation ...