Patents by Inventor Nobuyuki Taguchi

Nobuyuki Taguchi 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).

  • Patent number: 8126375
    Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: February 28, 2012
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
  • Patent number: 8121525
    Abstract: The toner bottle exchangeably used in an image forming apparatus. The toner bottle includes a bottle body having a substantially cylindrical shape and configured to contain toner, a gear configured to rotate a part of the toner bottle, a cap attached to the bottle body and including an opening arranged in a circumferential surface of the cap and configured to output toner to a development apparatus of the image forming apparatus, a toner conveyance mechanism arranged in the bottle body and configured to convey the toner to the opening.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: February 21, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyuki Taguchi, Misaki Uchiyama, Masahiro Kurita, Goro Katsuyama
  • Patent number: 8068770
    Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided. After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y. An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: November 29, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
  • Publication number: 20110286771
    Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.
    Type: Application
    Filed: June 20, 2011
    Publication date: November 24, 2011
    Inventors: Nobuyuki TAGUCHI, Masayuki YAMANE, Hideo YOSHIZAWA, Takeroh KURENUMA, Takayuki TAMAKI, Seiji TERAZAWA, Masashi HASEGAWA, Fumie SATOH, Teruo HITOSUGI, Takashi HISAZUMI, Goro KATSUYAMA
  • Publication number: 20110194874
    Abstract: A development device includes a developer container, a developer carrier, exposed partly from a casing, facing a latent image carrier in a development area, a magnetic field generator inside the developer carrier, having multiple magnetic poles including a conveyance pole to convey the developer downstream from the development area to a developer release portion, a developer agitator, and a developer regulator. A predetermined gap is kept between an outer surface of the developer carrier and an inner wall of the casing downstream from an opening of the casing, upstream from a developer release portion, in a direction in which the developer carrier rotates. Multiple recesses are formed in the outer surface of the developer carrier at a pitch in a circumferential direction shorter than half a width of a magnetic flux density of the developer conveyance pole in a direction perpendicular to an axial direction of the developer carrier.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 11, 2011
    Inventors: Katsumi Masuda, Takamasa Ozeki, Nobuyuki Taguchi, Yuuki Satoh, Toshiki Hayashi, Kyohta Koetsuka, Toshio Kojima, Masayuki Ohsawa, Noriyuki Kamiya, Takumi Terasaka
  • Patent number: 7991334
    Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: August 2, 2011
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
  • Patent number: 7962069
    Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: June 14, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
  • Publication number: 20110058858
    Abstract: There is provided a separation member for separating a first conveying path formed by a first conveying member from a second conveying path formed by a second conveying member. There is also provided an opposed member facing a magnetic pole H4 at an upstream side of two magnetic poles H4 and H6 that forms a developer-releasing magnetic pole H5.
    Type: Application
    Filed: August 20, 2010
    Publication date: March 10, 2011
    Inventors: Yoshiyuki Fukuda, Katsumi Masuda, Nobuyuki Taguchi, Yuuki Satoh, Yasufumi Takahashi, Keiichi Yoshida, Yoshio Hattori, Akira Azami, Takamasa Ozeki, Toshiki Hayashi
  • Publication number: 20110008075
    Abstract: A toner container detachably attached to a toner-container holder of a main body of an image forming apparatus includes a container body that includes an opening, and discharges toner contained in the container body, from the opening; and a held portion that is held by the toner-container holder in a non-rotating manner. The held portion includes an open/close member for opening/closing the toner outlet in synchronization with an attachment/detachment operation of the held portion to/from the toner-container holder.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Inventors: Nobuyuki TAGUCHI, Goro KATSUYAMA, Takeroh KURENUMA, Hideo YOSHIZAWA, Masayuki YAMANE
  • Publication number: 20110002713
    Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.
    Type: Application
    Filed: August 16, 2010
    Publication date: January 6, 2011
    Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
  • Patent number: 7853184
    Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: December 14, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
  • Patent number: 7853183
    Abstract: A toner container detachably attached to a toner-container holder of a main body of an image forming apparatus includes a container body that includes an opening, and discharges toner contained in the container body, from the opening; and a held portion that is held by the toner-container holder in a non-rotating manner. The held portion includes an open/close member for opening/closing the toner outlet in synchronization with an attachment/detachment operation of the held portion to/from the toner-container holder.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 14, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Goro Katsuyama, Takeroh Kurenuma, Hideo Yoshizawa, Masayuki Yamane
  • Publication number: 20100296847
    Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided. After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y. An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.
    Type: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
  • Patent number: 7840167
    Abstract: The toner bottle exchangeably used in an image forming apparatus. The toner bottle includes a bottle body having a substantially cylindrical shape and configured to contain toner, a gear configured to rotate a part of the toner bottle, a cap attached to the bottle body and including an opening arranged in a circumferential surface of the cap and configured to output toner to a development apparatus of the image forming apparatus, a toner conveyance mechanism arranged in the bottle body and configured to convey the toner to the opening.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: November 23, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyuki Taguchi, Misaki Uchiyama, Masahiro Kurita, Goro Katsuyama
  • Patent number: 7835675
    Abstract: A toner container detachably attached to a toner-container holder of a main body of an image forming apparatus includes a container body that includes an opening, and discharges toner contained in the container body, from the opening; and a held portion that is held by the toner-container holder in a non-rotating manner. The held portion includes an open/close member for opening/closing the toner outlet in synchronization with an attachment/detachment operation of the held portion to/from the toner-container holder.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 16, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Goro Katsuyama, Takeroh Kurenuma, Hideo Yoshizawa, Masayuki Yamane
  • Patent number: 7826777
    Abstract: A toner container detachably attached to a toner-container holder of a main body of an image forming apparatus includes a container body that includes an opening, and discharges toner contained in the container body, from the opening; and a held portion that is held by the toner-container holder in a non-rotating manner. The held portion includes an open/close member for opening/closing the toner outlet in synchronization with an attachment/detachment operation of the held portion to/from the toner-container holder.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 2, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Goro Katsuyama, Takeroh Kurenuma, Hideo Yoshizawa, Masayuki Yamane
  • Patent number: 7822371
    Abstract: A toner container includes a longitudinal container body, a held portion, and a standing inhibiting unit. The container body has a first end and a second end distal to the first end in length direction of the container body. The held portion is attached to the first end and has a toner outlet for discharging the toner contained in the container body. The held portion is held by the toner-container holder. The standing inhibiting unit is provided in the held portion and inhibits the toner container from being stood on a horizontal plane with the held portion directed vertically downward with respect to the container body.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: October 26, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
  • Publication number: 20100254732
    Abstract: The toner bottle exchangeably used in an image forming apparatus. The toner bottle includes a bottle body having a substantially cylindrical shape and configured to contain toner, a gear configured to rotate a part of the toner bottle, a cap attached to the bottle body and including an opening arranged in a circumferential surface of the cap and configured to output toner to a development apparatus of the image forming apparatus, a toner conveyance mechanism arranged in the bottle body and configured to convey the toner to the opening.
    Type: Application
    Filed: June 15, 2010
    Publication date: October 7, 2010
    Inventors: Nobuyuki TAGUCHI, Misaki UCHIYAMA, Masahiro KURITA, Goro KATSUYAMA
  • Publication number: 20100226690
    Abstract: A toner container and an image forming apparatus are disclosed. The toner container includes a guiding member formed at a part surrounding a toner outlet to be protruded from a circumferential surface of the toner container for guiding an opening or closing operation of a shutter member in a circumferential direction of the toner container. The image forming apparatus includes an image forming apparatus main body. The image forming apparatus main body includes a main body side shutter for opening or closing a toner supplying opening to be connected to the toner outlet. When the shutter member is opened, an end surface of the guiding member pushes the main body side shutter together with the opening operation of the shutter member, and the toner supplying opening is opened and is connected to the toner outlet.
    Type: Application
    Filed: August 4, 2009
    Publication date: September 9, 2010
    Inventors: Ichiro Kadota, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Nobuyuki Taguchi, Satoru Yoshida, Takuya Seshita
  • Patent number: D619643
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 13, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao