Patents by Inventor Shuichi Matsuzawa

Shuichi Matsuzawa 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: 11092878
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: August 17, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Patent number: 10866489
    Abstract: The electronic device can be used with a power source module attached to a device main body. The device main body and the power source module are electrically connected to each other by the respective connector portions. The device main body includes a connection terminal portion with a concave shape, and the power source module has a connection terminal portion with a convex shape that is fit to the connection terminal portion of the device main body. A power source terminal group is provided in a first surface, and a ground terminal group and a communication terminal group for communication with the device main body are provided in a second surface on a side opposite to the first surface, from among connection surfaces of the connection terminal portion. The ground terminal group is arranged at a position closer to the power source terminal group than to the communication terminal group.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: December 15, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Ota, Shuichi Matsuzawa, Koji Ishikawa
  • Patent number: 10859892
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: December 8, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Publication number: 20200355988
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Publication number: 20190196303
    Abstract: The electronic device can be used with a power source module attached to a device main body. The device main body and the power source module are electrically connected to each other by the respective connector portions. The device main body includes a connection terminal portion with a concave shape, and the power source module has a connection terminal portion with a convex shape that is fit to the connection terminal portion of the device main body. A power source terminal group is provided in a first surface, and a ground terminal group and a communication terminal group for communication with the device main body are provided in a second surface on a side opposite to the first surface, from among connection surfaces of the connection terminal portion. The ground terminal group is arranged at a position closer to the power source terminal group than to the communication terminal group.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Inventors: Hiroki Ota, Shuichi Matsuzawa, Koji Ishikawa
  • Publication number: 20190179213
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Patent number: 10261396
    Abstract: The electronic device can be used with a power source module attached to a device main body. The device main body and the power source module are electrically connected to each other by the respective connector portions. The device main body includes a connection terminal portion with a concave shape, and the power source module has a connection terminal portion with a convex shape that is fit to the connection terminal portion of the device main body. A power source terminal group is provided in a first surface, and a ground terminal group and a communication terminal group for communication with the device main body are provided in a second surface on a side opposite to the first surface, from among connection surfaces of the connection terminal portion. The ground terminal group is arranged at a position closer to the power source terminal group than to the communication terminal group.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Ota, Shuichi Matsuzawa, Koji Ishikawa
  • Patent number: 10254629
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Publication number: 20180224717
    Abstract: The electronic device can be used with an accessory module that is a second device attached to a device main body that is a first device. The accessory module includes a locking member that is held so as to be able to be turned. The locking member includes a ring-shaped portion that has a plurality of claw portions and an operation portion for performing a turning operation. The device main body 1 includes a plurality of claw portions corresponding to the plurality of claw portions of the locking member. The claw portions and the claw portions engage with each other in a state in which the accessory module is attached to the device main body by the turning operation of the operation portion, and the claw portions and the claw portions are not engaged in a state in which the accessory module can be removed from the device main body.
    Type: Application
    Filed: April 4, 2018
    Publication date: August 9, 2018
    Inventors: Shuichi Matsuzawa, Hiroki Ota, Koji Ishikawa
  • Publication number: 20180224718
    Abstract: The electronic device can be used with a power source module attached to a device main body. The device main body and the power source module are electrically connected to each other by the respective connector portions. The device main body includes a connection terminal portion with a concave shape, and the power source module has a connection terminal portion with a convex shape that is fit to the connection terminal portion of the device main body. A power source terminal group is provided in a first surface, and a ground terminal group and a communication terminal group for communication with the device main body are provided in a second surface on a side opposite to the first surface, from among connection surfaces of the connection terminal portion. The ground terminal group is arranged at a position closer to the power source terminal group than to the communication terminal group.
    Type: Application
    Filed: April 4, 2018
    Publication date: August 9, 2018
    Inventors: Hiroki Ota, Shuichi Matsuzawa, Koji Ishikawa
  • Patent number: 8787749
    Abstract: An electronic apparatus includes an exterior cover including a strap attachment portion, a circuit board on which an electric element that generates heat is mounted, and a chassis member to which the circuit board is fixed and through which the heat generated by the electric element is transferred. The chassis member is formed of a metallic material, and the chassis member includes a reinforcing portion arranged to overlap the strap attachment portion to reinforce the strap attachment portion. The reinforcing portion is disposed to be exposed inside the strap attachment portion.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: July 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shuichi Matsuzawa
  • Patent number: 8743277
    Abstract: An electronic apparatus includes an operation member movable from an initial position with respect to an apparatus body, a first elastic member configured to be deformed from a first state to a second state when the operation member is moved from the initial position and to restore the operation member to the initial position with a force produced to return from the second state to the first state, a second elastic member configured to be held by the first elastic member when the first elastic member is in the first state, and a contact portion configured not to come into contact with the second elastic member when the operation member is at the initial position and to come into contact with the second elastic member when the operation member is moved from the initial position.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Matsuzawa, Takazumi Seo
  • Publication number: 20130051786
    Abstract: An electronic apparatus includes an exterior cover including a strap attachment portion, a circuit board on which an electric element that generates heat is mounted, and a chassis member to which the circuit board is fixed and through which the heat generated by the electric element is transferred. The chassis member is formed of a metallic material, and the chassis member includes a reinforcing portion arranged to overlap the strap attachment portion to reinforce the strap attachment portion. The reinforcing portion is disposed to be exposed inside the strap attachment portion.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shuichi Matsuzawa
  • Publication number: 20120307138
    Abstract: An electronic apparatus includes an operation member movable from an initial position with respect to an apparatus body, a first elastic member configured to be deformed from a first state to a second state when the operation member is moved from the initial position and to restore the operation member to the initial position with a force produced to return from the second state to the first state, a second elastic member configured to be held by the first elastic member when the first elastic member is in the first state, and a contact portion configured not to come into contact with the second elastic member when the operation member is at the initial position and to come into contact with the second elastic member when the operation member is moved from the initial position.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shuichi Matsuzawa, Takazumi Seo
  • Patent number: 7110039
    Abstract: An image pickup apparatus includes an electronic-flash charging capacitor and first and second battery storage areas separately disposed from each other so as to have the electronic-flash charging capacitor sandwiched therebetween.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: September 19, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shuichi Matsuzawa
  • Patent number: 7086621
    Abstract: A fishing reel includes: a spool rotatably supported in a reel main body; a support member integrally rotating with the spool; a plurality of brake members slidably supported to the support member; and a brake surface provided in the reel main body, the brake surface being slidingly contactable with the brake members; wherein according to the rotation of the spool, an urging force is applied to the brake members in a direction where the brake members move away from the brake surface, and the brake members is slidingly contactable with the brake surface against the urging force, when a centrifugal force more than a predetermined value is applied to the spool.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: August 8, 2006
    Assignee: Daiwa Seiko, Inc.
    Inventors: Shuichi Matsuzawa, Harumichi Oishi, Takenori Otsu, Naoyuki Ezuka
  • Publication number: 20030152826
    Abstract: An electronic device includes a battery lid (9) which is openably/closeably formed at an opening of a battery housing chamber where a battery (6) is to be loaded removably and which has an engaging portion, at its position where the battery lid closes the opening, for keeping the opening closed, and an electrode plate (8) formed of a conductive member held by the battery lid (9) so as to be in contact with an electrode of the battery (6) when the battery lid (9) is in the closed state, wherein the electrode plate (8) has a contact portion (8a) extending integrally from its base which is held by the battery lid (9) so as to come into contact with the electrode of the battery (9), and is made of an elastic body that resists a pressing force applied by the electrode of the battery (6) when the battery lid (9) is closed with the battery (6) being housed in the battery housing chamber.
    Type: Application
    Filed: February 13, 2003
    Publication date: August 14, 2003
    Inventor: Shuichi Matsuzawa
  • Publication number: 20030112362
    Abstract: An image pickup apparatus includes an electronic-flash charging capacitor and first and second battery storage areas separately disposed from each other so as to have the electronic-flash charging capacitor sandwiched therebetween.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 19, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shuichi Matsuzawa
  • Patent number: 6412723
    Abstract: A spool shaft 2 supported between reel side-plates 3 and 4 and a spool 1 secured to the spool shaft 2 in a double bearing reel for fishing are integrally formed of the same material.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: July 2, 2002
    Assignee: Daiwa Seiko, Inc.
    Inventors: Nobuyuki Yamaguchi, Shuichi Matsuzawa, Masayoshi Fujii, Shinichi Asano
  • Patent number: 6086005
    Abstract: A fishing reel is provided which is capable of preventing noise and rapid change in the rotational speed of the spool which take place when a casting operation is performed, controlling backlash of a fishing line by a person even if the person is not skilled in the casting operation and maintaining the distance for which the tackle can be thrown.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: July 11, 2000
    Assignee: Daiwa Seiko, Inc.
    Inventors: Mikiharu Kobayashi, Nobuyuki Yamaguchi, Shuichi Matsuzawa