Patents by Inventor Youhei Matsumoto

Youhei Matsumoto 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: 11491507
    Abstract: An object is to suppress a variation in amount of a sealant that is applied on an object to be sealed. There is provided a sealant discharge nozzle configured such that a sealant from a cartridge is discharged from a discharge hole of the sealant discharge nozzle. The sealant discharge nozzle has a leading end portion comprising a pair of side wall portions; and a connecting wall portion configured to connect the pair of side wall portions with each other and provided in cooperation with the pair of side wall portions to form a first recess that is open on one side in a first direction perpendicular to an axial direction of the sealant discharge nozzle, and on a leading end side. The discharge hole has an opening formed on a first recess side of the connecting wall portion.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: November 8, 2022
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Masayoshi Okamoto, Tadamichi Mawatari, Kensuke Tsuchiya, Masayoshi Zaitsu, Naohiro Otsuki, Junji Tsuchiya, Youhei Matsumoto
  • Publication number: 20220017331
    Abstract: An elevator control apparatus improves car position detection accuracy without increasing the number of sensors. A position detection sensor installed on a caroutputs a detection signal when an object installed in a hoistway is detected. A controller corrects a position of the car calculated on the basis of a pulse signal that an encoder which rotates in accordance with ascending and descending of the car outputs, in accordance with a position of the object to be detected. A storage device stores data on the position of the car calculated prior to a time point when the detection signal is received. A correction amount of the position of the car is calculated on the basis of a communication delay time and the data which is stored in the storage device, and the position of the car is corrected in accordance with the correction amount.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 20, 2022
    Inventors: Yuki SAITO, Youhei MATSUMOTO, Takamichi HOSHINO
  • Publication number: 20210309491
    Abstract: A method having a first step in which a radio signal transmitting unit transmits a radio signal carrying a piece of information corresponding to a first event which occurred to a signal comparison unit and, upon occurrence of the first event or a second event occurring simultaneously or virtually simultaneously with the first event, a wired signal transmitting unit transmits a wired signal carrying a piece of information corresponding to the first or second event to the signal comparison unit and a second step in which the signal comparison unit judges reliability of the radio signal based on the radio signal and the wired signal. In the second step, the signal comparison unit judges reliability of the radio signal based on the pieces of information respectively carried by the radio signal and the wired signal and a temporal difference between reception timings of the radio signal and the wired signal.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 7, 2021
    Inventors: Hajime KANZAKI, Toshiyuki SAITO, Youhei MATSUMOTO, Takamichi HOSHINO, Toshiharu MATSUKUMA, Yuki SAITO
  • Publication number: 20200406289
    Abstract: An object is to suppress a variation in amount of a sealant that is applied on an object to be sealed. There is provided a sealant discharge nozzle configured such that a sealant from a cartridge is discharged from a discharge hole of the sealant discharge nozzle. The sealant discharge nozzle has a leading end portion comprising a pair of side wall portions; and a connecting wall portion configured to connect the pair of side wall portions with each other and provided in cooperation with the pair of side wall portions to form a first recess that is open on one side in a first direction perpendicular to an axial direction of the sealant discharge nozzle, and on a leading end side. The discharge hole has an opening formed on a first recess side of the connecting wall portion.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 31, 2020
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Masayoshi OKAMOTO, Tadamichi MAWATARI, Kensuke TSUCHIYA, Masayoshi ZAITSU, Naohiro OTSUKI, Junji TSUCHIYA, Youhei MATSUMOTO
  • Publication number: 20080141526
    Abstract: In component feeding head apparatus, a head unit having a holding unit for releasably holding a component and a rotating unit for rotating the holding unit around its center of axis is set as an object of an up-and-down operation and an inverting operation, and a head lifting device for moving the head unit up and down and a head inverting device for inverting the head unit are provided as constructions independent from the head unit that is the object.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 19, 2008
    Inventors: Shoriki Narita, Shuichi Hirata, Kanji Hata, Hirokuni Miyazaki, Youhei Matsumoto
  • Patent number: 7350289
    Abstract: In component feeding head apparatus, a head unit having a holding unit for releasably holding a component and a rotating unit for rotating the holding unit around its center of axis is set as an object of an up-and-down operation and an inverting operation, and a head lifting device for moving the head unit up and down and a head inverting device for inverting the head unit are provided as constructions independent from the head unit that is the object.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: April 1, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shoriki Narita, Shuichi Hirata, Kanji Hata, Hirokuni Miyazaki, Youhei Matsumoto
  • Publication number: 20060104754
    Abstract: In component feeding head appratus, a head unit having a holding for releasably holding a component and a rotating unit for rotating the holding unit around its center of axis is as an object of an up-and-down operation and an inverting operation, and a head lifting device for moving the head unit up and down and a head inverting device for inverting the head unit are provided as constructions independent from the head unit that is the object.
    Type: Application
    Filed: December 1, 2003
    Publication date: May 18, 2006
    Inventors: Shoriki Narita, Shuichi Hirata, Kanji Hata, Hirokuni Miyazaki, Youhei Matsumoto