Patents by Inventor Keisuke Matsumura

Keisuke Matsumura 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: 11926721
    Abstract: Provided is a silicone rubber molded body (1) including a conductive ink coating layer (3) that is disposed on a portion of the surface of the silicone rubber molded body (1). The conductive ink coating layer (3) contains a hydrolyzable organosilicon compound. Using the silicone rubber molded body with a saturated water absorption of 0.10 to 1.50% by mass and/or using a conductive ink containing water improves the affinity between the surface of the silicone rubber molded body (1) and the conductive ink coating layer (3). A residual ink area is an average of 20% or more and 100% or less after the conductive ink coating layer (3) is subjected to an abrasion test. With this configuration, the silicone rubber molded body has a high affinity between the silicone rubber and the conductive ink, good durability under continuous stress, and stability in long-term use. Further provided is a method for producing the silicone rubber molded body.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: March 12, 2024
    Assignee: Fuji Polymer Industries Co., Ltd.
    Inventors: Tomoki Matsumura, Keisuke Kawahama, Makoto Iwai
  • Patent number: 11921004
    Abstract: A linear motion drive device including a ball screw, a linear motion table driven by the ball screw to move linearly, and an abnormality detection device configured to detect a decrease in a preload applied to the ball screw. The abnormality detection device includes a vibration sensor configured to measure vibration during operation of the ball screw, a calculation processing unit configured to acquire a vibration value of a vibration signal in a specific frequency band among vibration signals measured by the vibration sensor, and an abnormality detection unit configured to determine that a decrease in the preload has occurred in the ball screw when the vibration value is less than a previously determined threshold with respect to a reference value, the reference value being a vibration value in an initial stage of the operation of the ball screw or during a normal operation of the ball screw.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 5, 2024
    Assignee: NSK LTD.
    Inventors: Keisuke Matsumura, Yushi Ootani, Satoshi Hashimoto
  • Publication number: 20220099526
    Abstract: A linear motion drive device including a ball screw, a linear motion table driven by the ball screw to move linearly, and an abnormality detection device configured to detect a decrease in a preload applied to the ball screw. The abnormality detection device includes a vibration sensor configured to measure vibration during operation of the ball screw, a calculation processing unit configured to acquire a vibration value of a vibration signal in a specific frequency band among vibration signals measured by the vibration sensor, and an abnormality detection unit configured to determine that a decrease in the preload has occurred in the ball screw when the vibration value is less than a previously determined threshold with respect to a reference value, the reference value being a vibration value in an initial stage of the operation of the ball screw or during a normal operation of the ball screw.
    Type: Application
    Filed: October 16, 2019
    Publication date: March 31, 2022
    Applicant: NSK LTD.
    Inventors: Keisuke MATSUMURA, Yushi OOTANI, Satoshi HASHIMOTO
  • Patent number: 11187667
    Abstract: The present invention includes a body case having a biological sample sensor mounting portion on one end side, a temperature sensor (A) provided on the one end side inside the body case, a measurement portion connected to the biological sample sensor mounting portion, and a control portion connected to the measurement portion. A temperature sensor (B) is provided on one other end side inside the body case, and when measurement is performed by the measurement portion, temperature change amounts in the two end portions are compared using the temperature sensors (A) and (B). Furthermore, a measurement value obtained by the measurement portion is corrected using temperature information from either one of the temperature sensors (A) or (B) that is provided in the end portion on the side where the temperature change is smaller.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: November 30, 2021
    Assignee: PHC HOLDINGS CORPORATION
    Inventors: Hirotaka Ochi, Keisuke Matsumura, Hitoshi Fujino, Yohei Hashimoto
  • Patent number: 10955034
    Abstract: A rolling guide apparatus having a first member 1, a second member 2, and a rolling body unit 5, the apparatus including a guide path G of the rolling body unit 5 including a rolling path R configured to have a rolling groove 1a and a rolling groove 3a, and a circulation path C allowing communication between a start point and an end point of the rolling path R, the rolling body unit 5 being configured to have a plurality of first rolling bodies 5a and a plurality of second rolling bodies 5b each composed of an elastic material, at least one second rolling body 5b being always positioned in the circulation path C. The rolling guide apparatus is easy to be assembled and is capable of performing stable operations.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: March 23, 2021
    Assignee: NSK LTD.
    Inventors: Jun Matsumoto, Keisuke Matsumura
  • Patent number: 10679343
    Abstract: An ophthalmic image processing apparatus that processes pieces of image data of a subject eye which are acquired by a plurality of ophthalmic examination apparatuses including a first ophthalmic examination apparatus obtaining first image data of the subject eye and a second ophthalmic examination apparatus obtaining second image data of the subject eye includes: a processor; and memory storing computer readable instructions, when executed by the processor, causing the ophthalmic image processing apparatus to execute: setting process of setting image types for the first image data and the second image data that form a registration image; and image processing process of generating the registration image in which the first image data and the second image data which correspond to the image types set in the setting process are superimposed on each other, and outputting the generated registration image.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 9, 2020
    Assignee: NIDEK CO., LTD.
    Inventors: Keisuke Matsumura, Hironori Koike, Kota Kadokawa
  • Publication number: 20180112707
    Abstract: A rolling guide apparatus is disclosed, which has a first member 1, a second member 2 and a rolling body unit 5 disposed between the first member 1 and the second member 2, the second member being movable along the first member 1 upon rolling of the rolling body unit 5, the apparatus including: a guide path G of the rolling body unit 5 being configured to have: a rolling path R configured to have a rolling groove la formed in the first member 1 and a rolling groove 3a, formed in the second member 2, in a face-to-face relationship with the rolling groove la of the first member 1; and a circulation path C provided in the second member 2 and allowing communication between a start point and an end point of the rolling path R, the rolling body unit 5 being configured to have a plurality of first rolling bodies 5a and a plurality of second rolling bodies 5b each composed of an elastic material, at least one second rolling body 5b being always positioned in the circulation path C.
    Type: Application
    Filed: May 16, 2016
    Publication date: April 26, 2018
    Inventors: Jun MATSUMOTO, Keisuke MATSUMURA
  • Patent number: 9921227
    Abstract: Biological sample measurement device includes biological sample measuring instrument, and temperature information supply instrument which supplies temperature information regarding a measurement environment to biological sample measuring instrument and has holding portion of biological sample measuring instrument on the upper surface thereof. Biological sample measuring instrument has main body case, measurement unit provided inside main body case, a control unit connected to the measurement unit, and temperature information reception unit connected to the control unit. Holder has temperature sensor, and temperature information transmission unit which is connected to temperature sensor and transmits the temperature information to temperature information reception unit.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: March 20, 2018
    Assignee: Panasonic Healthcare Holdings Co., Ltd.
    Inventors: Keisuke Matsumura, Masumi Aono, Kaoru Shigematsu, Yoshiki Takeuchi, Takahiro Watanabe
  • Publication number: 20180067072
    Abstract: The present invention includes a body case having a biological sample sensor mounting portion on one end side, a temperature sensor (A) provided on the one end side inside the body case, a measurement portion connected to the biological sample sensor mounting portion, and a control portion connected to the measurement portion. A temperature sensor (B) is provided on one other end side inside the body case, and when measurement is performed by the measurement portion, temperature change amounts in the two end portions are compared using the temperature sensors (A) and (B). Furthermore, a measurement value obtained by the measurement portion is corrected using temperature information from either one of the temperature sensors (A) or (B) that is provided in the end portion on the side where the temperature change is smaller.
    Type: Application
    Filed: October 18, 2017
    Publication date: March 8, 2018
    Inventors: Hirotaka OCHI, Keisuke MATSUMURA, Hitoshi FUJINO, Yohei HASHIMOTO
  • Patent number: 9851810
    Abstract: In an information terminal device (100), a display component (2) displays, on the basis of commands from a controller (9), a plurality of character keys, an enter key (20) for entering input information including one or more characters inputted by selecting the plurality of character keys, and a selection marker indicating one of the plurality of character keys being selected. An input component (3) includes a select key (5) that causes the controller (9) to successively move the selection marker displayed on the display component (2) over the plurality of character keys so as to select one of the character keys, and a change key (8) that causes the controller (9) to change a display content of the display component (2). When the change key (8) has been operated in a state in which the input information is being displayed on the display component (2), the controller (9) moves the selection marker displayed on the display component (2) from the selected character key directly to the enter key (20).
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: December 26, 2017
    Assignee: PANASONIC HEALTHCARE HOLDINGS CO., LTD.
    Inventor: Keisuke Matsumura
  • Patent number: 9823214
    Abstract: The present invention includes a body case having a biological sample sensor mounting portion on one end side, a temperature sensor (A) provided on the one end side inside the body case, a measurement portion connected to the biological sample sensor mounting portion, and a control portion connected to the measurement portion. A temperature sensor (B) is provided on one other end side inside the body case, and when measurement is performed by the measurement portion, temperature change amounts in the two end portions are compared using the temperature sensors (A) and (B). Furthermore, a measurement value obtained by the measurement portion is corrected using temperature information from either one of the temperature sensors (A) or (B) that is provided in the end portion on the side where the temperature change is smaller.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: November 21, 2017
    Assignee: Panasonic Healthcare Holdings Co., Ltd.
    Inventors: Hirotaka Ochi, Keisuke Matsumura, Hitoshi Fujino, Yohei Hashimoto
  • Publication number: 20170256054
    Abstract: An ophthalmic image processing apparatus that processes pieces of image data of a subject eye which are acquired by a plurality of ophthalmic examination apparatuses including a first ophthalmic examination apparatus obtaining first image data of the subject eye and a second ophthalmic examination apparatus obtaining second image data of the subject eye includes: a processor; and memory storing computer readable instructions, when executed by the processor, causing the ophthalmic image processing apparatus to execute: setting process of setting image types for the first image data and the second image data that form a registration image; and image processing process of generating the registration image in which the first image data and the second image data which correspond to the image types set in the setting process are superimposed on each other, and outputting the generated registration image.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Applicant: NIDEK CO., LTD.
    Inventors: Keisuke MATSUMURA, Hironori KOIKE, Kota KADOKAWA
  • Publication number: 20170122956
    Abstract: Biological sample measurement device includes biological sample measuring instrument, and temperature information supply instrument which supplies temperature information regarding a measurement environment to biological sample measuring instrument and has holding portion of biological sample measuring instrument on the upper surface thereof. Biological sample measuring instrument has main body case, measurement unit provided inside main body case, a control unit connected to the measurement unit, and temperature information reception unit connected to the control unit. Holder has temperature sensor, and temperature information transmission unit which is connected to temperature sensor and transmits the temperature information to temperature information reception unit.
    Type: Application
    Filed: January 18, 2017
    Publication date: May 4, 2017
    Applicant: Panasonic Healthcare Holdings Co., Ltd.
    Inventors: Keisuke MATSUMURA, Masumi AONO, Kaoru SHIGEMATSU, Yoshiki TAKEUCHI, Takahiro WATANABE
  • Patent number: 9587989
    Abstract: Biological sample measurement device includes biological sample measuring instrument, and temperature information supply instrument which supplies temperature information regarding a measurement environment to biological sample measuring instrument and has holding portion of biological sample measuring instrument on the upper surface thereof. Biological sample measuring instrument has main body case, measurement unit provided inside main body case, a control unit connected to the measurement unit, and temperature information reception unit connected to the control unit. Holder has temperature sensor, and temperature information transmission unit which is connected to temperature sensor and transmits the temperature information to temperature information reception unit.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 7, 2017
    Assignee: PANASONIC HEALTHCARE HOLDINGS CO., LTD.
    Inventors: Keisuke Matsumura, Masumi Aono, Kaoru Shigematsu, Yoshiki Takeuchi, Takahiro Watanabe
  • Patent number: 9188466
    Abstract: This biological sample measuring device has a finger groove (6) provided in the short-side direction of a main body case (1) at a position that is closer to a sensor mounting portion (4) than a display section (5) on the rear side of the main body case (1). An interface unit (7) is provided on the front side portion of the main body case (1) corresponding to the finger groove (6). The interface unit (7) has an enter key (7b) and a plurality of cross keys (7ca), etc., disposed at a specific spacing around the outer periphery of the enter key (7b). The enter key (7b) is provided so that it protrudes farther than the cross keys (7ca), etc., on the front side of the main body case (1). A controller (13) performs a reset operation when a plurality of keys are pressed.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: November 17, 2015
    Assignee: Panasonic Healthcare Holdings Co., Ltd.
    Inventor: Keisuke Matsumura
  • Patent number: 8974746
    Abstract: A biological sample measuring device has the display screen of a display section divided into a first display area that displays measurement values, and a second displays area that displays the operating status. When the scheduled maintenance is needed for the biological sample measuring device, a controller displays an scheduled maintenance warning in the first and second display areas upon the first start-up that day, and displays an scheduled maintenance warning only in the second display area upon the second and subsequent start-ups that day.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: March 10, 2015
    Assignee: Panasonic Healthcare Holdings Co., Ltd.
    Inventor: Keisuke Matsumura
  • Publication number: 20140278192
    Abstract: The present invention includes a body case having a biological sample sensor mounting portion on one end side, a temperature sensor (A) provided on the one end side inside the body case, a measurement portion connected to the biological sample sensor mounting portion, and a control portion connected to the measurement portion. A temperature sensor (B) is provided on one other end side inside the body case, and when measurement is performed by the measurement portion, temperature change amounts in the two end portions are compared using the temperature sensors (A) and (B).
    Type: Application
    Filed: October 23, 2012
    Publication date: September 18, 2014
    Inventors: Hirotaka Ochi, Keisuke Matsumura, Hitoshi Fujino, Yohei Hashimoto
  • Patent number: 8764682
    Abstract: Disclosed are a measurement device and a puncture device that prevent thermal loss and enable decreased cost in laser units. A laser unit (200) of a measurement device (100) is equipped with a lens barrel (210), a laser rod (220) disposed inside the lens barrel (210), a flash lamp (230) which is disposed opposite the laser rod (220) inside the lens barrel (210) and in which an inert gas is sealed inside a hard glass tube (231), and supports (241, 242, 243, 244), which are made from a material with thermal conductivity of 100 W/(mK) or more, at least parts of which are disposed outside of the lens barrel (210), and which support the circumferential surface of the hard glass tube (231) in a housing.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 1, 2014
    Assignee: Panasonic Healthcare Co., Ltd.
    Inventors: Kiyohiro Horikawa, Takeshi Nishida, Yoshinori Amano, Tetsuya Takashima, Keisuke Matsumura, Masahiro Kitagawa
  • Patent number: 8755858
    Abstract: Provided are a blood sensor that is highly reliable and does not contaminate the interior of the main body of the device, a blood testing device and a blood analysis method. The blood sensor is provided with a plate-shaped base, a blood storage part set roughly in the center of the base, a supply path, one end of which is connected to the storage part and the other end of which is connected to an air pore, multiple detecting electrodes laid on one surface of the supply path connecting electrodes, each coming out of these detection electrodes, and skin detection electrodes in the storage part or near the storage part. The blood detecting device is provided with a skin detecting circuit that detects skin contact by measuring sensor conduction or impedance changes.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: June 17, 2014
    Assignee: Panasonic Corporation
    Inventors: Masahiro Kitagawa, Masaki Fujiwara, Keisuke Matsumura
  • Patent number: D892888
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 11, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ian Emerson Random, Keisuke Matsumura, Takashi Tsuda, Tomohiro Soeda