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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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Shunji Nakamura, Hiromitsu Hirabayashi, Junji Araya, Noribumi Koitabashi: Charging device. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 25, 1989: US04851960 (110 worldwide citation)

A charging device for contact-charging a member to be charged. A charging device for charging a movable member to be charged includes a contacting member adapted to contacting the member to be charged, and means for forming a vibratory electric field between the member to be charged and the contacti ...


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Mitsuru Kurata, Tokihide Ebata, Noribumi Koitabashi, Hiromitsu Hirabayashi, Hitoshi Sugimoto, Haruo Uchida: Ink container with ring-shaped ink absorbing member. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, September 17, 1996: US05557310 (102 worldwide citation)

An ink jet head cartridge includes a recording head for ejecting ink; an ink container for containing the ink to be supplied to the recording head; an ink supply port for supplying the ink from the container to the head; a porous ink absorbing material disposed in the container and having a ring sha ...


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Noribumi Koitabashi, Masami Ikeda, Sadayuki Sugama, Naohito Asai, Hiromitsu Hirabayashi, Tsutomu Abe, Hiroshi Sato, Shigeyasu Nagoshi, Eiichiro Shimizu, Masahiko Higuma, Yuji Akiyama, Hitoshi Sugimoto, Miyuki Matsubara, Shinichi Sato, Fumihiro Gotoh, Masaya Uetsuki: Replaceable ink cartridge. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 16, 1996: US05509140 (99 worldwide citation)

A replaceable ink cartridge, usable with a bubble jet printer, comprises a container formed by front, back, top and bottom walls, and two side walls providing major surfaces of said container, with a partition dividing the container into first and second chambers communicating with each other throug ...


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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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Noribumi Koitabashi: Ink printing method and ink-jet printing apparatus for performing printing with use of ink which performs function as a processing liquid making coloring material in other ink insoluble. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, March 18, 2003: US06533392 (86 worldwide citation)

In a case of forming an image of a black series, a low concentration colored ink having an opposite polarity to that of a black series ink is added thereto in an overlaying manner. Then, the deviation can be made visually unrecognized for the low concentration of the colored ink even if the overlaid ...


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Masatoshi Ikkatai, Noribumi Koitabashi, Yuji Tsuruoka: Method for refilling liquid into a liquid reservoir container, a liquid jet recording apparatus using such method, a liquid refilling container, a liquid reservoir container, and a head cartridge. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 8, 2000: US06022102 (77 worldwide citation)

A method for refilling liquid using a refilling container is to refill liquid to a liquid reserving container, which is provided with a first chamber that houses a negative pressure generating member, at the same time, having an aperture conductively connected to the outside, and with a second chamb ...


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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 ...