Patents by Inventor Yuichi Yamakawa

Yuichi Yamakawa 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: 20230328616
    Abstract: A wireless communication apparatus including least a first station (STA) and a second STA, and being connectable with at least a first access point (AP) and a second AP in parallel, includes a detection unit configured to detect that a quality of communication with the first AP with which a connection is established fulfills a predetermined condition, and a connection unit configured to establish a connection with the second AP using the second STA in a case where the detection unit detects that a quality of communication with the first AP fulfills the predetermined condition in a state that a connection with the first AP is established using the first STA.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: YUICHI YAMAKAWA, YUKI YOSHIKAWA
  • Publication number: 20230199635
    Abstract: Network slice information indicating a characteristic of a wireless network to be provided by a base station is acquired, and whether the base station provides a predetermined network slice is determined based on the acquired network slice information. If a determination that the base station does not provide the predetermined network slice is made, connection processing for connection between a communication apparatus and the base station is canceled, or connection between the communication apparatus and the base station is disconnected.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Inventors: Yuichi Yamakawa, Tetsuya Yamamoto
  • Patent number: 11606744
    Abstract: Network slice information indicating a characteristic of a wireless network to be provided by a base station is acquired, and whether the base station provides a predetermined network slice is determined based on the acquired network slice information. If a determination that the base station does not provide the predetermined network slice is made, connection processing for connection between a communication apparatus and the base station is canceled, or connection between the communication apparatus and the base station is disconnected.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Yamakawa, Tetsuya Yamamoto
  • Publication number: 20220312203
    Abstract: A communication apparatus that executes communication using a first scheme or a second scheme being a security-related scheme not requiring a user to enter a password is configured to switch between the first scheme and the second scheme based on the selected frequency band in a case where a setting not requiring a user to enter a password is made.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 29, 2022
    Inventor: Yuichi Yamakawa
  • Patent number: 11457267
    Abstract: In a case where another communication apparatus is reproducing a content stored in an external apparatus, a communication apparatus receives an instruction to obtain the content from the external apparatus and reproduce the content and a reproduction position of the content being reproduced by the another communication apparatus from the another communication apparatus. The communication apparatus controls reproducing of the content to start from a position at a subsequent time from the received reproduction position, based on time taken for a reproduction preparation for the content.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: September 27, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuichi Yamakawa
  • Publication number: 20210258870
    Abstract: Network slice information indicating a characteristic of a wireless network to be provided by a base station is acquired, and whether the base station provides a predetermined network slice is determined based on the acquired network slice information. If a determination that the base station does not provide the predetermined network slice is made, connection processing for connection between a communication apparatus and the base station is canceled, or connection between the communication apparatus and the base station is disconnected.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 19, 2021
    Inventors: Yuichi Yamakawa, Tetsuya Yamamoto
  • Patent number: 10667000
    Abstract: If another communication apparatus is reproducing a content stored in an external apparatus, a reproduction instruction for causing a communication apparatus to reproduce a content stored in the external apparatus is transmitted from the another communication apparatus to the communication apparatus. The communication apparatus performs reproduction preparation for the content based on the reproduction instruction, and then transmits a wireless signal to the another communication apparatus. The another communication apparatus obtains a reproduction start position of the content, based on reception of the wireless signal, and transmits the obtained reproduction start position to the communication apparatus.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 26, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuichi Yamakawa
  • Publication number: 20190394519
    Abstract: In a case where another communication apparatus is reproducing a content stored in an external apparatus, a communication apparatus receives an instruction to obtain the content from the external apparatus and reproduce the content and a reproduction position of the content being reproduced by the another communication apparatus from the another communication apparatus. The communication apparatus controls reproducing of the content to start from a position at a subsequent time from the received reproduction position, based on time taken for a reproduction preparation for the content.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 26, 2019
    Inventor: Yuichi Yamakawa
  • Publication number: 20190394517
    Abstract: If another communication apparatus is reproducing a content stored in an external apparatus, a reproduction instruction for causing a communication apparatus to reproduce a content stored in the external apparatus is transmitted from the another communication apparatus to the communication apparatus. The communication apparatus performs reproduction preparation for the content based on the reproduction instruction, and then transmits a wireless signal to the another communication apparatus. The another communication apparatus obtains a reproduction start position of the content, based on reception of the wireless signal, and transmits the obtained reproduction start position to the communication apparatus.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 26, 2019
    Inventor: Yuichi Yamakawa
  • Patent number: 9355497
    Abstract: An image processing system includes an imaging unit for imaging an outside world to generate a captured image, a position and orientation estimation unit for estimating a position and orientation of the imaging unit, a feature point estimation unit for estimating a position of a feature point in the captured image, a clipping unit for clipping an image for combining, and clipping an image for feature detection, a measurement unit for detecting a feature point from the image for feature detection, and measuring a position and orientation of the imaging unit, a generation unit for generating a CG image based on the position and orientation measured by the measurement unit, a combining unit for combining the image clipped by the clipping unit with the CG image, and a display control unit for displaying the image combined by the combining unit on a display unit.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: May 31, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuichi Yamakawa
  • Publication number: 20140320526
    Abstract: An image processing system includes an imaging unit for imaging an outside world to generate a captured image, a position and orientation estimation unit for estimating a position and orientation of the imaging unit, a feature point estimation unit for estimating a position of a feature point in the captured image, a clipping unit for clipping an image for combining, and clipping an image for feature detection, a measurement unit for detecting a feature point from the image for feature detection, and measuring a position and orientation of the imaging unit, a generation unit for generating a CG image based on the position and orientation measured by the measurement unit, a combining unit for combining the image clipped by the clipping unit with the CG image, and a display control unit for displaying the image combined by the combining unit on a display unit.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yuichi Yamakawa
  • Patent number: 8699797
    Abstract: An image processing apparatus sequentially detects a feature in an image, sequentially acquires information of the detected feature, compares information of a previous feature detected in a previous frame of the image with information of a current feature detected in a current frame of the image to sequentially determine whether to estimate that the previous feature matches the current feature, and stops the determination to record the information of the feature detected in the previous frame as information of the feature detected in the current frame in a case where the number of previous features estimated to match the current feature is equal to or greater than a predetermined number.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Yamakawa, Hiroichi Yamaguchi
  • Publication number: 20120155772
    Abstract: An image processing apparatus sequentially detects a feature in an image, sequentially acquires information of the detected feature, compares information of a previous feature detected in a previous frame of the image with information of a current feature detected in a current frame of the image to sequentially determine whether to estimate that the previous feature matches the current feature, and stops the determination to record the information of the feature detected in the previous frame as information of the feature detected in the current frame in a case where the number of previous features estimated to match the current feature is equal to or greater than a predetermined number.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 21, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuichi Yamakawa, Hiroichi Yamaguchi
  • Publication number: 20090256872
    Abstract: A print head which prevents printing force from being reduced by making the distance between the tip of a printing wire and a printing medium adjustable, and a printer equipped therewith are provided. When the tip of a wire (11) abrades through use of a print head (1) and printing force is reduced due to an increase in a distance between the printing surface of a print sheet (20) and the tip of the wire (11), a pull-out spacer (14) is pulled out. As the pull-out spacer (14) is pulled out, a distance L2 between the tip of a trace roller (12) and a reference surface (16a) of a frame is shortened to L1?2t, and a distance between the printing surface of the print sheet (20) and the reference surface (16a) of the frame, which is equal to a distance L2, is also shortened.
    Type: Application
    Filed: February 20, 2007
    Publication date: October 15, 2009
    Applicant: Seiko Precision Inc.
    Inventors: Yuichi Yamakawa, Naonobu Sawada
  • Patent number: 6159428
    Abstract: A structure of a gasified and melting furnace comprising a freeboard portion whose center axis is shifted from a center axis of a lower furnace portion by 50% or more of an inner furnace diameter, to load waste and additives and to measure a height of a deposition layer formed in the lower furnace portion, without passing through the freeboard.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: December 12, 2000
    Assignee: NKK Corporation
    Inventors: Yuichi Yamakawa, Tsuneo Matsudaira, Sunao Nakamura, Tomohiro Yoshida, Yasuo Suzuki
  • Patent number: 5320441
    Abstract: Printing wires are able to be changed over from one to another by the movement of a printing head alone, thereby eliminating the need for a solenoid and simplifying the arrangement. The printing quality is improved by uniformly guiding the printing wires with the entire circumference of each guide hole, and further the amount of torsion of the printing wires caused by changeover of the printing wire arrangements is equalized, thereby stabilizing the printing characteristics and eliminating the difference in the printing characteristics between the parallel and staggered arrangements and also improving the durability. A first front guide is secured to a nose portion of a head frame. A front guide supporting frame, which supports a second front guide, is provided on the nose portion of the head frame so that the frame is movable in the direction of alignment of the printing wires. The printing wires are guided by the second front guide and the first front guide.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: June 14, 1994
    Assignee: Seikosha Co., Ltd.
    Inventor: Yuichi Yamakawa
  • Patent number: 4934848
    Abstract: A printer head comprising a plurality of driving arms provided corresponding to a like plurality of printing elements and a like plurality of electromagnetic driving devices for driving the corresponding driving arms independently. Each of the electromagnetic driving devices includes a movable yoke fixed to a corresponding driving arm, a core piece facing the yoke and having a coil mounted around the core piece, and a magnet adjacent to the core piece. Each of the magnetic circuits includes an adjusting member for adjusting the magnetic reluctance thereof.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: June 19, 1990
    Assignee: Seikosha Co., Ltd.
    Inventors: Mikio Hayashi, Yuichi Yamakawa
  • Patent number: D345576
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: March 29, 1994
    Assignee: Seikosha Co., Ltd.
    Inventor: Yuichi Yamakawa