Patents by Inventor Akinori Takayama

Akinori Takayama 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).

  • Publication number: 20230238771
    Abstract: Provided is an electronic device capable of reducing the possibility of malfunction. An electronic device is provided with: a first substrate including a drive circuit; a second substrate including a light-emitting unit driven by the drive circuit and mounted on one surface side of the first substrate; and a light-shielding unit provided on the first substrate and configured to shield at least a part of the drive circuit from light emitted by the light-emitting unit.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 27, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Daisuke SUZUKI, Takashi MASUDA, Shinichirou SAEKI, Koichi OKAMOTO, Motoi KIMURA, Yuichi HAMAGUCHI, Noriyuki BANNO, Mitsunari HOSHI, Akinori TAKAYAMA, Soichi OCHIAI, Shinichiro KUSUNOKI, Makoto AKETO, Hideki NODA, Takashi SAKOH
  • Patent number: 9383709
    Abstract: An electrophotographic image forming apparatus includes an electrophotographic image forming apparatus main assembly including a preventing portion; a supporting member for supporting a plurality of electrophotographic photosensitive members, the supporting member being movable between an inside position inside the main assembly and an outside position outside the main assembly in a state in which the supporting member is supported by the main assembly and being disengageable from the main assembly at the outside position; a handle portion, provided to the supporting member, to be touched for disengaging the supporting member from the main assembly; and a portion to be prevented, provided to the supporting member, being movable between a preventing position in which the portion to be prevented contacts the preventing portion in order to prevent the supporting member from being disengaged from the main assembly and a retracted position in which the portion to be prevented is retracted from the preventing posit
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinori Takayama
  • Publication number: 20160154365
    Abstract: An electrophotographic image forming apparatus includes an electrophotographic image forming apparatus main assembly including a preventing portion; a supporting member for supporting a plurality of electrophotographic photosensitive members, the supporting member being movable between an inside position inside the main assembly and an outside position outside the main assembly in a state in which the supporting member is supported by the main assembly and being disengageable from the train assembly at the outside position; a handle portion, provided to the supporting member, to be touched for disengaging the supporting member from the main assembly; and a portion to be prevented, provided to the supporting member, being movable between a preventing position in which the portion to be prevented contacts the preventing portion in order to prevent the supporting member from being disengaged from the main assembly and a retracted position in which the portion to be prevented is retracted from the preventing posi
    Type: Application
    Filed: September 3, 2014
    Publication date: June 2, 2016
    Inventor: Akinori Takayama
  • Patent number: 9177578
    Abstract: A voice coil actuator utilizes an eddy current magnet configured for positioning proximal to the outer perimeter side face of one or more recording disk, and which cooperates with the conductive side face to generate an eddy current force to rotate a latch lever to an unlatched position. Embodiments may include an end cam on a base on which the latch lever is rotatably disposed, and the latch lever includes a cam follower capable of rotatably engaging with the end cam, whereby the magnetic attraction between the eddy current magnet and the voice coil actuator yoke generates a latch bias force which causes the end cam and cam follower to engage or mesh in order to hold the latch lever in a latched position.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 3, 2015
    Assignee: HGST Netherlands B.V.
    Inventors: Akinori Takayama, Hiromitsu Masuda, Shinichi Kimura
  • Patent number: 9158237
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: October 13, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ichiro Yasumaru, Masaru Shimura, Seiji Inada, Yuuichirou Inaba, Akinori Takayama, Kazuhiro Doda
  • Patent number: 8965256
    Abstract: An image forming apparatus includes an image bearing member unit including a toner image carrying member, a transfer unit including a movable endless belt for transferring the toner image from the carrying member onto a transfer material, a plurality of stretching members for stretching the endless belt, and a supporting portion, provided at an end portion with respect to a widthwise direction, for supporting the stretching members. In addition, a main assembly frame is provided at a position opposing the supporting portion and includes a positioning portion for determining positions of the plurality of stretching members, wherein the supporting portion is movable relative to the main assembly frame.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeo Kawanami, Masahiro Suzuki, Masaru Shimura, Shinji Katagiri, Tatsuya Kinukawa, Shigeru Hoashi, Akinori Takayama
  • Patent number: 8958709
    Abstract: In an image forming apparatus, one of a plurality of support members supporting an intermediate transfer belt is a guide member configured to regulate the rotational direction of the intermediate transfer belt while being held in sliding contact with the intermediate transfer belt at a position opposite the secondary transfer member across the intermediate transfer belt. This guide member is equipped with a first resistor portion in sliding contact with the intermediate transfer belt and a second resistor portion of a higher electrical resistance than the first resistor portion, with the second resistor portion provided upstream of the first resistor portion in the rotational direction of the intermediate transfer belt.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Suzuki, Masaru Shimura, Shinji Katagiri, Tatsuya Kinukawa, Shigeru Hoashi, Akinori Takayama, Takeo Kawanami, Michio Uchida
  • Patent number: 8862023
    Abstract: An image forming apparatus includes a main assembly and a door for opening and closing an opening. A supporting member supports a plurality of electrophotographic photosensitive members, and is movable between (i) a first position, in which latent images are formable on the electrophotographic photosensitive members, (ii) a second position, in which the supporting member is retracted from the first position, and (iii) a third position outside the main assembly in a state in which the supporting member is supported by the main assembly. The supporting member is disengageable from the main assembly at the third position. A cover member protects an exposed portion of the plurality of electrophotographic photosensitive members exposed from the supporting member. The cover member is capable of covering and uncovering the exposed portion. The cover member is changed from an open state to a closed state by the touch of a handle portion.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinori Takayama
  • Patent number: 8792805
    Abstract: A color electrophotographic image forming apparatus for forming an image on a recording material includes a cartridge supporting member movable between an inside position inside a main assembly of the apparatus while supporting cartridges and an outside position outside the main assembly of the apparatus. The apparatus includes a plurality of positioning urging devices that urge the cartridges to positioning portions, and a plurality of spacing urging devices that urge the cartridges in directions of spacing from the positioning portions. The urging forces of the plurality of spacing urging devices are smaller than a combination of an urging force of the plurality of positioning urging devices and forces applied to the plurality of spacing urging devices by weights of the cartridges.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinori Takayama
  • Patent number: 8761640
    Abstract: An image forming apparatus includes a main assembly; a door openable relative to the main assembly; an image bearing member for bearing a toner image; a cleaning member for removing toner remaining on the image bearing member; a transfer member for transferring the toner image onto a sheet; a fixing member for fixing the toner image, transferred by the transfer member, on the sheet; a discharging member for discharging the sheet, on which the toner image is fixed by the fixing member, from the main assembly. The sheet remaining in the main assembly without being discharged by the discharging member is capable of being removed from a space formed by opening the door. The image forming apparatus further includes a spacer unit capable of moving the cleaning member toward and away from the image bearing member.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: June 24, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinori Takayama
  • Publication number: 20140050510
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ichiro Yasumaru, Masaru Shimura, Seiji Inada, Yuuichirou Inaba, Akinori Takayama, Kazuhiro Doda
  • Patent number: 8594546
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: November 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Yasumaru, Masaru Shimura, Seiji Inada, Yuuichiro Inaba, Akinori Takayama, Kazuhiro Doda
  • Patent number: 8583006
    Abstract: An electrophotographic image forming apparatus is provided. The apparatus comprises a movable member including a mounting portion for detachably mounting a cartridge, with the movable member being movable from an outside toward an inside of a main assembly of the apparatus while supporting the cartridge. The apparatus further comprises an output contact and an intermediary electrical contact configured and positioned to supply a bias voltage received by the output contact to the cartridge, with intermediary electrical contact being disposed on the mounting portion and being elastically deformable in a moving direction in which the movable member is movable between the outside and the inside. The cartridge includes an input electrical contact and a cartridge side contact portion.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: November 12, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunari Murayama, Masaki Kakitani, Hideki Maeshima, Akinori Takayama
  • Patent number: 8532549
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Yasumaru, Masaru Shimura, Seiji Inada, Yuuichirou Inaba, Akinori Takayama, Kazuhiro Doda
  • Publication number: 20130007778
    Abstract: A storage device includes a first loading tray to comprise a loading surface on which to abut a non-recording surface of said portable recording medium, a second loading tray to comprise a loading surface, parallel with the loading surface of said first loading tray, on which to abut a recording surface of said portable recording medium loaded in the way of being turned in the same direction as that of the recording surface of said portable recording medium loaded into said first loading tray, and an access unit disposed on the side of the recording surface to access the recording surface of said portable recording medium even in such a case that said portable recording medium is loaded into any one of said first loading tray and said second loading tray.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Applicant: FUJITSU LIMITED
    Inventor: Akinori TAKAYAMA
  • Patent number: 8326176
    Abstract: An electrophotographic image forming apparatus includes an electrophotographic image forming apparatus main assembly, with the main assembly including a preventing portion. The apparatus also includes a supporting member for supporting a plurality of electrophotographic photosensitive members, with the supporting member being movable between an inside position inside the main assembly, and an outside position outside the main assembly in a state in which the supporting member is supported by the main assembly and being disengageable from the main assembly at the outside position. A handle portion is provided to the supporting member, to be touched for disengaging the supporting member from the main assembly, with the handle portion being provided upstream of the plurality of electrophotographic photosensitive members with respect to a movement direction in which the supporting member is moved from the inside position to the outside position.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: December 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinori Takayama
  • Patent number: 8320805
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Yasumaru, Masaru Shimura, Seiji Inada, Yuuichirou Inaba, Akinori Takayama, Kazuhiro Doda
  • Patent number: 8291441
    Abstract: A storage device includes a first loading tray to comprise a loading surface on which to abut a non-recording surface of said portable recording medium, a second loading tray to comprise a loading surface, parallel with the loading surface of said first loading tray, on which to abut a recording surface of said portable recording medium loaded in the way of being turned in the same direction as that of the recording surface of said portable recording medium loaded into said first loading tray, and an access unit disposed on the side of the recording surface to access the recording surface of said portable recording medium even in such a case that said portable recording medium is loaded into any one of said first loading tray and said second loading tray.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: October 16, 2012
    Assignee: Fujitsu Limited
    Inventor: Akinori Takayama
  • Publication number: 20120230741
    Abstract: An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ichiro YASUMARU, Masaru SHIMURA, Seiji INADA, Yuuichirou INABA, Akinori TAKAYAMA, Kazuhiro DODA
  • Publication number: 20120177403
    Abstract: An electrophotographic image forming apparatus is provided. The apparatus comprises a movable member including a mounting portion for detachably mounting a cartridge, with the movable member being movable from an outside toward an inside of a main assembly of the apparatus while supporting the cartridge. The apparatus further comprises an output contact and an intermediary electrical contact configured and positioned to supply a bias voltage received by the output contact to the cartridge, with intermediary electrical contact being disposed on the mounting portion and being elastically deformable in a moving direction in which the movable member is movable between the outside and the inside. The cartridge includes an input electrical contact and a cartridge side contact portion.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 12, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazunari Murayama, Masaki Kakitani, Hideki Maeshima, Akinori Takayama