Patents by Inventor Fumitaka Kan
Fumitaka Kan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5576699Abstract: In a method for transferring information in a form of electron beam, an electron beam detector detects the electron beam, and emission of the electron beam from a predetermined electron beam source is controlled in accordance with a signal from the detector upon detection of the electron beam. A deflection electrode is also used to deflect the electron beams according to an electric or magnetic field to perform charge shifting, logical additions, logical multiplications, image formation, and the like.Type: GrantFiled: May 24, 1995Date of Patent: November 19, 1996Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Kenji Nakamura, Masanori Takenouchi, Naoji Hayakawa, Isamu Shimoda, Masahiko Okunuki
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Patent number: 5574438Abstract: In a method for transferring information in a form of electron beam, an electron beam detector detects the electron beam, and emission of the electron beam from a predetermined electron beam source is controlled in accordance with a signal from the detector upon detection of the electron beam. A deflection electrode is also used to deflect the electron beams according to an electric or magnetic field to perform charge shifting, logical additions, logical multiplications, image formation, and the like.Type: GrantFiled: May 13, 1994Date of Patent: November 12, 1996Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Kenji Nakamura, Masanori Takenouchi, Naoji Hayakawa, Isamu Shimoda, Masahiko Okunuki
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Patent number: 5355127Abstract: In a method and apparatus for transferring information in a form of electron beam, an electron beam detector detects the electron beam, and emission of the electron beam from a predetermined electron beam source is controlled in accordance with a signal from the detector upon detection of the electron beam. In the method and apparatus, a deflection electrode is also used to deflect the electron beams according to an electric or magnetic field to perform charge shifting, logical additions, Logical multiplications, image formation, and the like.Type: GrantFiled: June 24, 1992Date of Patent: October 11, 1994Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Kenji Nakamura, Masanori Takenouchi, Naoji Hayakawa, Isamu Shimoda, Masahiko Okunuki
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Patent number: 5100468Abstract: An ink which can cause a change in its adhesiveness by an electrochemical reaction is obtained by impregnating a crosslinked substance such as polyvinyl alcohol with a liquid dispersion medium comprising an organic solvent having a relative dielectric constant of 15 or larger at 25.degree. C. such as ethylene glycol. The ink shows little characteristic change due to drying, etc., and suitably retains its fluidity when left standing in the air for a long period. The ink is supplied with a pattern of energy to be provided with an adhesive pattern, which is then transferred to a recording medium such as plain paper, directly or by the medium of an intermediate transfer medium to form an ink pattern corresponding to the energy pattern applied.Type: GrantFiled: September 7, 1988Date of Patent: March 31, 1992Assignee: Canon Kabushiki KaishaInventors: Toshiya Yuasa, Hiroshi Fukumoto, Kohzoh Arahara, Toshikazu Ohnishi, Fumitaka Kan, deceased
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Patent number: 4962389Abstract: A fluid ink which is substantially nonadhesive but can be imparted with an adhesiveness on application of an energy such as electrochemical energy or heat energy, is obtained by impregnating a crosslinked substance such as guar gum or polyvinyl alcohol compound with a liquid dispersion medium such as water. The fluid ink, preferably formed into a layer in advance, is supplied with a pattern of energy to be provided with an adhesive pattern, which is then transferred to a recording medium, such as plain paper, directly or by the medium of an intermediate transfer medium to form an ink pattern corresponding to the energy pattern applied.Type: GrantFiled: June 30, 1989Date of Patent: October 9, 1990Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Yasuyuki Tamura, Naoki Kushida, Koichi Tohma, Hiroshi Fukumoto, Toshiya Yuasa, Noboru Tohyama, Norihiko Koizumi
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Patent number: 4945833Abstract: A printing process using an ink which is substantially non-adhesive but can be imparted with an adhesiveness when subjected to a pH change. In the printing process, the ink is subjected to a pH change to be provided with an adhesiveness to a desired depth, and the resultant adhesive ink is supplied to a printing plate having a pattern of ink receptibility to form thereon an ink pattern corresponding to the ink receptibility pattern. The ink pattern is then transferred to a transfer-receiving medium such as plain paper to form thereon a recorded image. In the above-mentioned printing process, a uniform thin ink layer can be supplied to the printing plate by chemically regulating the amount of the ink to be supplied.Type: GrantFiled: December 21, 1988Date of Patent: August 7, 1990Assignee: Canon Kabushiki KaishaInventors: Kohzoh Arahara, Tetsuro Fukui, Hiroshi Fukumoto, Yoshio Takasu, Tadashi Sato, Fumitaka Kan
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Patent number: 4920361Abstract: An image recording method and an image recording apparatus using an ink which is substantially non-adhesive but can be imparted with an adhesiveness when subjected to a pH change. In the image recording method, the ink is subjected to a pattern of pH change to be provided with an adhesive pattern, which is then transferred to a recording medium, such as plain paper, directly or by the medium of an intermediate transfer medium to form an ink pattern corresponding to the pH change pattern.Type: GrantFiled: June 24, 1988Date of Patent: April 24, 1990Assignee: Canon Kabushiki KaishaInventors: Kohzoh Arahara, Hiroshi Fukumoto, Toshiya Yuasa, Toshikazu Ohnishi, Fumitaka Kan, deceased, Hiroshi Tanioka, Norihiko Koizumi, Noboru Tohyama
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Patent number: 4881084Abstract: A process of recording using fluid ink which is substantially non-adhesive but can be imparted with an adhesiveness on application of an energy such as electrochemical energy or heat energy. The ink is obtained by impregnating a crosslinked substance such as guar gum or polyvinyl alcohol compound with a liquid dispersion medium such as water. The fluid ink, preferably formed into a layer in advance, is supplied with a pattern of energy to be provided with an adhesive pattern, which is then transferred to a recording medium, such as plain paper, directly or by the medium of an intermediate transfer medium to form an ink pattern corresponding to the energy pattern applied.Type: GrantFiled: July 17, 1987Date of Patent: November 14, 1989Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Yasuyuki Tamura, Naoki Kushida, Koichi Tohma, Hiroshi Fukumoto, Toshiya Yuasa, Noboru Tohyama, Norihiko Koizumi
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Patent number: 4858062Abstract: A charging device for forming a latent image of high precision includes plural electron beams generated by plural solid state beam sources, which are independently controlled by plural accelerating electrodes by independently variable voltages.Type: GrantFiled: April 14, 1988Date of Patent: August 15, 1989Assignee: Canon Kabushiki KaishaInventors: Naoji Hayakawa, Masanori Takenouchi, Kenji Nakamura, Fumitaka Kan, Yasuo Kozato, Isao Hakamada
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Patent number: 4855763Abstract: An image recording apparatus for recording an image on a recording medium comprises ink transporting roll for transporting a fluid ink, energy applying element for selectively applying energy to the ink transported by the ink transporting roll, transfer member for transferring to the recording medium the ink whose transfer characteristics are changed upon selectively application of the energy and coating member disposed in an upstream of the energy applying element with respect to a transporting direction of the ink transporting roll so as to oppose the ink transporting roll, for supplying the ink having a predetermined thickness to the ink transporting roll. A distance between the ink transporting roll and the coating member is gradually reduced from the upstream to a downstream.Type: GrantFiled: May 24, 1988Date of Patent: August 8, 1989Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, deceased, Norihiko Koizumi, Hiroshi Fukumoto, Toshiya Yuasa, Noboru Tohyama, Shinya Mishina, Hiroshi Tanioka
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Patent number: 4838940Abstract: An ink which can be imparted with an adhesiveness on application of an electric current is obtained by impregnating a crosslinked substance such as guar gum or polyvinyl alcohol compound with a liquid dispersion medium such as water. The ink is supplied with a pattern of energy to be provided with an adhesive pattern, which is then transferred to a recording medium, such as plain paper, directly or by the medium of an intermediate transfer medium to form an ink pattern corresponding to the energy pattern applied. The ink further comprises a buffer action-imparting substance and is excellent in storage stability and stability of performances during a continuous use.Type: GrantFiled: February 18, 1988Date of Patent: June 13, 1989Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Kohzoh Arahara, Noboru Tohyama, Toshiya Yuasa, Hiroshi Fukumoto
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Patent number: 4786971Abstract: An image recording and/or reproducing apparatus including a recording unit having a recording driving mechanism for recording a plurality of images in the form of electrostatic pattern on different regions of a photosensitive member, a reading unit having a beam source and capable of scanning the photosensitive member by an electron beam so as to convert the recorded pattern into electric signals, and a connecting member for connecting the recording unit and the reading unit without causing any change in the states of these units. This apparatus makes it possible to record and/or to reproduce images with a high image quality. The connecting member includes a container accommodating the recording unit and the reading unit. Alternatively, the connecting member is adapted to keep a portion of the recoding unit and a portion of the reading unit in close contact with each other.Type: GrantFiled: April 14, 1987Date of Patent: November 22, 1988Assignee: Canon Kabushiki KaishaInventors: Shuzo Kaneko, Tatsuo Takeuchi, Tsutomu Toyono, Tohru Takahashi, Nagao Hosono, Fumitaka Kan, Akihiko Tojo, Takayoshi Tsutsumi, Ryo Fujimoto, Yoshiro Udagawa
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Patent number: 4773738Abstract: An optical modulation device includes: a ferroelectric liquid crystal disposed between a pair of substrates; provision for applying an alternating voltage sufficient to render the ferroelectric liquid crystal turbid; and provision for superposing a DC voltage on the alternating voltage. A portion of the ferroelectric liquid crystal rendered turbid through the application of an alternating voltage is selectively caused to have an increased transmittance when superposed with a DC voltage.Type: GrantFiled: August 25, 1987Date of Patent: September 27, 1988Assignee: Canon Kabushiki KaishaInventors: Naoji Hayakawa, Fumitaka Kan, Toshiaki Majima, Masanori Takenouchi, Ichiro Nomura, Mitsuru Yamamoto, Hidetoshi Suzuki
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Patent number: 4675699Abstract: An image-recording apparatus which comprises:(a) an image-recording medium comprising a pair of substrates and a thermo-optical liquid crystal provided between the pair of the substrates,(b) a heating means for uniformly heating the liquid crystal up to obtain an isotropic phase,(c) a means for applying an electrical field to the liquid crystal, and(d) a writing means for conducting writing by locally heating the image-recording medium.Type: GrantFiled: January 15, 1986Date of Patent: June 23, 1987Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Naoji Hayakawa, Toshiaki Majima, Masanori Takenouchi, Mitsuru Yamamoto, Hidetoshi Suzuki, Ichiro Nomura
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Patent number: 4669852Abstract: A developing apparatus for developing a latent image on a latent image bearing member, including a magnetic device for forming a magnetic brush of a developer mixture containing developer particles and magnetic particles; a movable developer carrying member for developing the latent image on the latent image bearing member, the developer carrying member being contactable with the magnetic brush to receive the developer mixture; a magnetic particle blocking member, disposed opposed to the developer carrying member at a position downstream of the position where the developer carrying member is contacted with the magnetic brush, for blocking the magnetic particles to form a coating of the developer particles on a surface of the developer carrying member, wherein the coating of the developer particles is conveyed by the movement of the developer carrying member to a developing station where the latent image is developed with the conveyed developer particles.Type: GrantFiled: September 20, 1984Date of Patent: June 2, 1987Assignee: Canon Kabushiki KaishaInventors: Hatsuo Tajima, Kimio Nakahata, Hidemi Egami, Fumitaka Kan, Atsushi Hosoi
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Patent number: 4660958Abstract: A developing apparatus includes a developer supply container, having an opening, for containing a non-magnetic developer and magnetic particles, an endlessly movable developer carrying member of a non-magnetic material for carrying a developer, which is movable between an inside of the developer supply container and an outside of the developer supply container through the opening, a magnetic particle confining member, provided to an outer surface of the developer carrying member with a gap, a magnet for generating a fixed magnetic field, having a magnetic pole disposed inside of the carrying member and upstream of the confining member with respect to movement of the carrying member, and a magnet, disposed outside of the carrying member and downstream of the confining member with respect to movement of the carrying member, for forming a line of magnetic force extending therefrom to the confining member.Type: GrantFiled: May 7, 1984Date of Patent: April 28, 1987Assignee: Canon Kabushiki KaishaInventors: Hidemi Egami, Fumitaka Kan, Atsushi Hosoi, Hatsuo Tajima, Shunji Nakamura, Kimio Nakahata
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Patent number: 4638760Abstract: A developing apparatus includes a container for containing a non-magnetic developer and magnetic particles, a developer carrier for carrying the non-magnetic developer toward an image bearing member, a regulating member located adjacent to the non-magnetic developer discharge opening of the container to form a gap between the surface of the carrier and the regulating member, and a magnet positioned adjacent to the carrier at the side of the carrier opposite to the regulating member and causing the magnetic particles to form a magnetic brush upstream of the regulating member adjacent to the developer discharge opening of the container with respect to the direction in which the developer carrier is moved, whereby a thin layer of the non-magnetic developer can be formed on the developer carrier.Type: GrantFiled: July 25, 1985Date of Patent: January 27, 1987Assignee: Canon Kabushiki KaishaInventors: Shunji Nakamura, Fumitaka Kan, Hidemi Egami, Atsushi Hosoi, Hatsuo Tajima, Kimio Nakahata
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Patent number: 4637706Abstract: A developing apparatus, including, a developer supply container, having an opening, for containing a non-magnetic developer and magnetic particles, an endlessly movable developer carrying member of a non-magnetic material for carrying a developer, which is movable between an inside of the developer supply container and an outside of the developer supply container through the opening, a magnetic particle confining member, spaced from outer surface of the developer carrying member with a gap, a magnet for generating a fixed magnetic field, having a magnetic pole disposed inside of the carrying member and upstream of the confining member with respect to movement of the developer carrying member, and a magnet, disposed outside of the carrying member in proximity with the confining member at an upstream side thereof with respect to movement of the developer carrying member.Type: GrantFiled: June 8, 1984Date of Patent: January 20, 1987Assignee: Canon Kabushiki KaishaInventors: Atsushi Hosoi, Fumitaka Kan, Hidemi Egami, Hatsuo Tajima, Shunji Nakamura, Kimio Nakahata
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Patent number: 4607938Abstract: A developing apparatus for developing a latent image includes a container, a developer carrying member movable along an endless path from inside the container to the outside, a magnetic field generator inside the carrying member, a partition member in the container for separately supporting, before operation, a first developer of magnetic particles and a second developer of non-magnetic particles, and a regulating member cooperable with the magnetic field generator. Upon release of the partition member, the first developer forms a base layer on the carrying member and the second developer forms on the base layer and then, upon circulation of the carrying member the second developer is moved past the regulating member.Type: GrantFiled: April 18, 1984Date of Patent: August 26, 1986Assignee: Canon Kabushiki KaishaInventors: Atsushi Hosoi, Kimio Nakahata, Hatsuo Tajima, Hidemi Egami, Fumitaka Kan, Shunji Nakamura
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Patent number: 4583490Abstract: A thin developer layer forming apparatus including a developer supply container, having an opening, for containing a developer and magnetic particles, an endlessly movable developer carrying member for carrying the developer, which is movable between an inside of the developer supply container and an outside of the developer supply container through the opening, a magnetic particle confining member, provided to an outer surface of the developer carrying member with a gap, and a magnet for generating a fixed magnetic field, having a magnetic pole disposed inside of the carrying member and upstream of the confining member with respect to movement of the developer carrying member, wherein the confining member is inclined toward downstream with respect to the movement of the developer carrying member to confine the magnetic particles within the developer supply container and to apply only the developer on the developer carrying member.Type: GrantFiled: August 8, 1984Date of Patent: April 22, 1986Assignee: Canon Kabushiki KaishaInventors: Fumitaka Kan, Hatsuo Tajima, Atsushi Hosoi, Masanori Takenouchi, Takashi Saito