Patents by Inventor Akihiko Obata

Akihiko Obata 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: 11835487
    Abstract: The present invention provides a method for inspecting a material to be inspected using ultrasound waves, the method including the following step 201 to step 301, in which step 201 is performed in a condition where: the surface temperature of a material under inspection—atmospheric temperature>2° C., and inspection using ultrasound waves in step 301 satisfies: a refractive attenuation rate?1.5%. Step 201: blowing a fluid from a blowing port onto the material to be inspected. Step 301: inspecting the material to be inspected using the ultrasound waves after step 201 or at the same time as the step 201.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: December 5, 2023
    Assignee: Teijin Limited
    Inventors: Takashi Toyozumi, Hodaka Yokomizo, Makoto Ootsubo, Shuhei Suzuki, Akihiko Obata
  • Publication number: 20220072811
    Abstract: The present invention provides an impact-absorbing member having a hollow-structured impact-absorbing section comprising an outer cylinder section and a hollow section, wherein the outer cylinder section includes a thermoplastic resin and carbon fibers having a weight-average fiber length of 1 mm to 100 mm, and throughout the entire periphery of the outer cylinder part, there is an annular region where the carbon fibers are dispersed in an in-plane direction and there is no bonding portion such as a welded surface; therefore, there is no breaking starting point when impact is borne and the impact absorption ability is stable.
    Type: Application
    Filed: December 20, 2018
    Publication date: March 10, 2022
    Applicant: Teijin Limited
    Inventors: Hodaka Yokomizo, Akihiko Obata
  • Publication number: 20210003538
    Abstract: The present invention provides a method for inspecting a material to be inspected using ultrasound waves, the method including the following step 201 to step 301, in which step 201 is performed in a condition where: the surface temperature of a material under inspection—atmospheric temperature >2° C., and inspection using ultrasound waves in step 301 satisfies: a refractive attenuation rate ?1.5%. Step 201: blowing a fluid from a blowing port onto the material to be inspected. Step 301: inspecting the material to be inspected using the ultrasound waves after step 201 or at the same time as the step 201.
    Type: Application
    Filed: March 6, 2019
    Publication date: January 7, 2021
    Applicant: Teijin Limited
    Inventors: Takashi Toyozumi, Hodaka Yokomizo, Makoto Ootsubo, Shuhei Suzuki, Akihiko Obata
  • Patent number: 10850431
    Abstract: A conveyance device includes a plurality of holding mechanisms and one or more pressing mechanisms, the holding mechanisms each include a holder that holds a molding material and a holder movement mechanism that moves the holder, and the pressing mechanisms each include a pusher that comes into contact with and pushes the molding material and a pusher movement mechanism that moves the pusher.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 1, 2020
    Assignees: SHIBAURA MACHINE CO., LTD., TEIJIN LIMITED
    Inventors: Kazuhito Sato, Chiaki Shigematsu, Hodaka Yokomizo, Tetsuya Yoneda, Akihiko Obata
  • Patent number: 10843387
    Abstract: To provide a method of manufacturing a press molding by molding a molding material comprising reinforced fibers and a thermoplastic resin by a cold press method. The method of manufacturing a press molding comprising reinforced fibers and a thermoplastic resin, includes the steps of: holding the molding material heated at a temperature not lower than the softening temperature with a plurality of grippers installed on a carrier; carrying the molding material between the upper mold and the lower mold of a mold for molding; pushing the molding material with pushers to preform it at a predetermined preforming rate; and press molding the preformed molding by closing the upper mold and the lower mold and applying pressure.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 24, 2020
    Assignees: TEIJIN LIMITED, SHIBAURA MACHINE CO., LTD.
    Inventors: Hodaka Yokomizo, Tetsuya Yoneda, Akihiko Obata, Kazuhito Sato, Chiaki Shigematsu
  • Publication number: 20180361632
    Abstract: To provide a method of manufacturing a press molding by molding a molding material comprising reinforced fibers and a thermoplastic resin by a cold press method. The method of manufacturing a press molding comprising reinforced fibers and a thermoplastic resin, includes the steps of: holding the molding material heated at a temperature not lower than the softening temperature with a plurality of grippers installed on a carrier; carrying the molding material between the upper mold and the lower mold of a mold for molding; pushing the molding material with pushers to preform it at a predetermined preforming rate; and press molding the preformed molding by closing the upper mold and the lower mold and applying pressure.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 20, 2018
    Applicants: TEIJIN LIMITED, TOSHIBA MACHINE CO., LTD.
    Inventors: Hodaka YOKOMIZO, Tetsuya YONEDA, Akihiko OBATA, Kazuhito SATO, Chiaki SHIGEMATSU
  • Patent number: 10006677
    Abstract: The present invention provides a method for manufacturing a shaped product constituted by a fiber-reinforced composite material including reinforcing fibers and a thermoplastic resin. The shaped product maintains isotropy of the fibers to the end thereof even if press-molded under conditions in which charge ratio of a prepreg to a die is low. Specifically, the method includes using a specific prepreg obtained by impregnating the reinforcing fibers with thermoplastic resin, and molding-processing the prepreg under specific conditions.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: June 26, 2018
    Assignee: Teijin Limited
    Inventors: Michiharu Taniguchi, Motoomi Arakawa, Yasunori Nagakura, Tsukasa Arai, Akihiko Obata
  • Publication number: 20180169901
    Abstract: A conveyance device includes a plurality of holding mechanisms and one or more pressing mechanisms, the holding mechanisms each include a holder that holds a molding material and a holder movement mechanism that moves the holder, and the pressing mechanisms each include a pusher that comes into contact with and pushes the molding material and a pusher movement mechanism that moves the pusher.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 21, 2018
    Applicants: Toshiba Kikai Kabushiki Kaisha, Teijin Limited
    Inventors: Kazuhito Sato, Chiaki Shigematsu, Hodaka Yokomizo, Tetsuya Yoneda, Akihiko Obata
  • Patent number: 8992811
    Abstract: This method for manufacturing a shaped product is characterized in preparing a specific random mat including a thermoplastic resin and carbon fiber bundles having an average fiber length of 5-100 mm, impregnating a thermoplastic resin into the random mat, pressing the random mat in a metal mold in a range of 0.1-20 MPa, and then taking out the random mat from the metal mold.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: March 31, 2015
    Assignee: Teijin Limited
    Inventors: Yasunori Nagakura, Motoomi Arakawa, Michiharu Taniguchi, Akihiko Obata
  • Publication number: 20150064408
    Abstract: The present invention provides a method for manufacturing a shaped product constituted by a fiber-reinforced composite material including reinforcing fibers and a thermoplastic resin. The shaped product maintains isotropy of the fibers to the end thereof even if press-molded under conditions in which charge ratio of a prepreg to a die is low. Specifically, the method includes using a specific prepreg obtained by impregnating the reinforcing fibers with thermoplastic resin, and molding-processing the prepreg under specific conditions.
    Type: Application
    Filed: October 31, 2014
    Publication date: March 5, 2015
    Applicant: TEIJIN LIMITED
    Inventors: Michiharu Taniguchi, Motoomi Arakawa, Yasunori Nagakura, Tsukasa Arai, Akihiko Obata
  • Patent number: 8900502
    Abstract: The present invention provides a method for manufacturing a shaped product constituted by a fiber-reinforced composite material including reinforcing fibers and a thermoplastic resin, the shaped product with maintained isotropy of the fibers to the end thereof even if press-molded under conditions in which charge ratio of a prepreg to a die is low. Specifically, the method includes using a specific prepreg obtained by impregnating the reinforcing fibers with thermoplastic resin, and molding-processing the prepreg under specific conditions.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: December 2, 2014
    Assignee: Teijin Limited
    Inventors: Michiharu Taniguchi, Motoomi Arakawa, Yasunori Nagakura, Tsukasa Arai, Akihiko Obata
  • Publication number: 20140148072
    Abstract: This method for manufacturing a shaped product is characterized in preparing a specific random mat including a thermoplastic resin and carbon fiber bundles having an average fiber length of 5-100 mm, impregnating a thermoplastic resin into the random mat, pressing the random mat in a metal mold in a range of 0.1-20 MPa, and then taking out the random mat from the metal mold.
    Type: Application
    Filed: February 3, 2014
    Publication date: May 29, 2014
    Applicant: Tenjin Limited
    Inventors: Yasunori Nagakura, Motoomi Arakawa, Michiharu Taniguchi, Akihiko Obata
  • Publication number: 20140077412
    Abstract: The present invention provides a method for manufacturing a shaped product constituted by a fiber-reinforced composite material including reinforcing fibers and a thermoplastic resin, the shaped product with maintained isotropy of the fibers to the end thereof even if press-molded under conditions in which charge ratio of a prepreg to a die is low. Specifically, the method includes using a specific prepreg obtained by impregnating the reinforcing fibers with thermoplastic resin, and molding-processing the prepreg under specific conditions.
    Type: Application
    Filed: November 27, 2013
    Publication date: March 20, 2014
    Applicant: TEIJIN LIMITED
    Inventors: Michiharu Taniguchi, Motoomi Arakawa, Yasunori Nagakura, Tsukasa Arai, Akihiko Obata
  • Patent number: 7398185
    Abstract: A system recognizes an occurrence of offline action when a state in which a person-to-be-recorded does not perform a computer operation continues for or longer than a predetermined time. Then, action related information such as action schedule information about a person-to-be-recorded, movement position information indicating the position of a person-to-be-recorded, immobile target position information indicating the position of an immobile target such as a building, a point on a map, etc., position-action correspondence associating the immobile target position information with the content of offline action, etc. is acquired. According to the information, the content of the offline action is estimated. When a next computer operation is detected, the estimated content is displayed for confirmation by the person-to-be-recorded. The system accepts and records the input of supplement, amend, approve, etc. from the person-to-be-recorded.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: July 8, 2008
    Assignee: Fujitsu Limited
    Inventors: Kouji Aoyama, Akihiko Obata, Hiroaki Harada
  • Publication number: 20080126289
    Abstract: An apparatus registers a participant instance with an incentive inputted by a member “a” (a participant), a searcher instance as supplement to the participant instance inputted by a member “b” (a searcher), and an approval incentive added by a member “c” (an approver) in an instance database 11. Then, when a solver “d” who viewed the participant instance and proposed a solution requests display of incentive allocation, the apparatus sums up the incentive for the participant instance from the instance database 11 and the approval incentive to calculate incentive allocation between the searcher of the associated searcher instance and the solver based on a pre-determined rate. The apparatus further weights, using pre-determined rate, on the allocation to the searcher of searcher instance referenced by others. The apparatus displays the calculated incentive allocation on a terminal 2d of the solver “d”.
    Type: Application
    Filed: August 28, 2007
    Publication date: May 29, 2008
    Applicant: Fujitsu Limited
    Inventors: Akihiko Obata, Shigeru Yamada, Hiroaki Harada
  • Publication number: 20080120623
    Abstract: In a work-flow process, a work-flow apparatus, and a computer-readable medium storing a work-flow program for delivering work requests to stations in an organization: a station in charge of executing each work request is determined by comparing the work request with work definitions, and the work request is delivered to the station in charge; acceptance or rejection of the work request by the station in charge is recorded in a request-processing history in association with an identifier of the work request; and the number of work requests which have been improperly or indirectly delivered to each station is obtained on the basis of the numbers of work requests which have been rejected by the station. When the number of work requests which have been improperly or indirectly delivered to each station is greater than a predetermined number, the work definition for the station is determined to be corrected.
    Type: Application
    Filed: September 17, 2007
    Publication date: May 22, 2008
    Applicant: Fujitsu Limited
    Inventors: Hiroaki Harada, Jun Arima, Akihiko Obata, Takanori Ukai
  • Publication number: 20070219752
    Abstract: A system recognizes an occurrence of offline action when a state in which a person-to-be-recorded does not perform a computer operation continues for or longer than a predetermined time. Then, action related information such as action schedule information about a person-to-be-recorded, movement position information indicating the position of a person-to-be-recorded, immobile target position information indicating the position of an immobile target such as a building, a point on a map, etc., position-action correspondence associating the immobile target position information with the content of offline action, etc. is acquired. According to the information, the content of the offline action is estimated. When a next computer operation is detected, the estimated content is displayed for confirmation by the person-to-be-recorded. The system accepts and records the input of supplement, amend, approve, etc. from the person-to-be-recorded.
    Type: Application
    Filed: June 14, 2006
    Publication date: September 20, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Kouji Aoyama, Akihiko Obata, Hiroaki Harada
  • Patent number: 7254481
    Abstract: An action support apparatus displays a destination specification screen for specifying a destination, and receives from the user a specification of a general destination. If a general destination is specified, then the apparatus determines a detailed destination, referencing a knowledge DB. If there is a plurality of detailed destinations with respect to the general destination, then any one of them is set to the user's destination. Next, the apparatus sets the current location as the starting point, and generates a planned route from the starting point to the destination based on a map DB and an internal clock. Furthermore, the apparatus reads a filtering rule from a filtering DB, and extracts as recommended information facility information of facilities suited to the user from a facility information DB. Depending on the filtering rule, it is also acceptable to use user information in a user DB in the extraction of the recommended information.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: August 7, 2007
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yamada, Naoki Sashida, Akihiko Obata
  • Publication number: 20050149254
    Abstract: An action support apparatus displays a destination specification screen for specifying a destination, and receives from the user a specification of a general destination. If a general destination is specified, then the apparatus determines a detailed destination, referencing a knowledge DB. If there is a plurality of detailed destinations with respect to the general destination, then any one of them is set to the user's destination. Next, the apparatus sets the current location as the starting point, and generates a planned route from the starting point to the destination based on a map DB and an internal clock. Furthermore, the apparatus reads a filtering rule from a filtering DB, and extracts as recommended information facility information of facilities suited to the user from a facility information DB. Depending on the filtering rule, it is also acceptable to use user information in a user DB in the extraction of the recommended information.
    Type: Application
    Filed: March 10, 2005
    Publication date: July 7, 2005
    Applicant: Fujitsu Limited
    Inventors: Shigeru Yamada, Naoki Sashida, Akihiko Obata
  • Publication number: 20040193586
    Abstract: A database search system for searching a database for data measures an input number of search conditions input during a period from a start to an end of search processing or a necessary time taken from the start to the end of the search processing, receives an input of a message describing know-how information corresponding to contents of the search processing from a user, in a case where the measured input number exceeds a predetermined threshold value, and stores the input message under a condition that the input message is associated with a predetermined search condition during an execution period of the search processing. During execution of the search processing, the search conditions input by the user are compared with stored search conditions every time the search conditions are received, and in a case where a plurality of or more search conditions are matched with each other, the associated message is output to the user.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 30, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Naoki Sashida, Akihiko Obata