Patents by Inventor Masatoshi Fujimoto

Masatoshi Fujimoto 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: 20240321808
    Abstract: A semiconductor chip according to an embodiment includes a metallic film provided on a semiconductor chip; an insulating film provided on the metallic film and having an opening; a bonding material provided on the metal film in the opening, and the bonding material being bonded to the metallic film; and a connector including a bonding surface bonded to the bonding material, and an annular groove provided on the bonding surface, the annular groove being along the periphery of the bonding surface, and an inner diameter of the annular groove being 60% or more and 90% or less of an outer diameter of the annular groove.
    Type: Application
    Filed: September 11, 2023
    Publication date: September 26, 2024
    Inventors: Kazuki MATSUO, Masatoshi ARAI, Rie FUJIMOTO
  • Patent number: 12098920
    Abstract: An optical coherence tomography device includes a light source, a mirror device including a movable mirror configured to perform a reciprocating operation, a support part configured to support an object, a beam splitter configured to generate interfering light, an optical sensor configured to detect the interfering light, and a control unit. Each of the plurality of pixels included in the optical sensor includes a light receiving part, a plurality of transfer gates, and a discharge gate. The control unit applies an electric signal to the optical sensor so that the plurality of transfer gates are sequentially brought into a charge transfer state in at least three time ranges separated from each other and the discharge gate is brought into a charge discharge state in a time range other than the at least three time ranges for each period of an interferogram signal of the interfering light.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: September 24, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Mitsuhito Mase, Masatoshi Fujimoto, Tomofumi Suzuki
  • Publication number: 20230083427
    Abstract: An optical coherence tomography device includes a light source, a mirror device including a movable mirror configured to perform a reciprocating operation, a support part configured to support an object, a beam splitter configured to generate interfering light, an optical sensor configured to detect the interfering light, and a control unit. Each of the plurality of pixels included in the optical sensor includes a light receiving part, a plurality of transfer gates, and a discharge gate. The control unit applies an electric signal to the optical sensor so that the plurality of transfer gates are sequentially brought into a charge transfer state in at least three time ranges separated from each other and the discharge gate is brought into a charge discharge state in a time range other than the at least three time ranges for each period of an interferogram signal of the interfering light.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 16, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Mitsuhito MASE, Masatoshi FUJIMOTO, Tomofumi SUZUKI
  • Publication number: 20220404274
    Abstract: A spectroscopic measurement device includes: a light source unit configured to output pump light and probe light; a terahertz wave generation unit configured to generate a terahertz wave by the input of the pump light; a terahertz wave detection unit to which the terahertz wave and the probe light are input and configured to modulate the probe light based on a refractive index that changes due to an electro-optical effect according to the input of the terahertz wave; and a light detection unit configured to detect the probe light modulated by the terahertz wave detection unit. A main body unit is configured to include the light source unit and the light detection unit. A measurement unit is configured to include the terahertz wave generation unit and the terahertz wave detection unit. The main body unit and the measurement unit are optically connected to each other by a polarization maintaining fiber.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 22, 2022
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takayoshi KUGA, Yoichi KAWADA, Takashi YASUDA, Kazutaka TOMARI, Masatoshi FUJIMOTO
  • Patent number: 10429720
    Abstract: The device includes a spatial light modulation section having a phase modulation plane to which laser light L1 in a wavelength region longer than an ultraviolet region is input, and on which a phase of the laser light L1 is modulated at each of a plurality of two-dimensionally arrayed regions, to generate modulated laser light L2, a wavelength conversion section having a light incident plane which receives the modulated laser light L2 output from the spatial light modulation section, and converting a wavelength of the modulated laser light L2 into a wavelength in the ultraviolet region, and an image transfer optical system coupling the phase modulation plane of the spatial light modulation section and the light incident plane of the wavelength conversion section, so as to be optically conjugate systems to each other.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 1, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroshi Saito, Masatoshi Fujimoto, Shingo Oishi, Kenshi Fukumitsu
  • Patent number: 10384823
    Abstract: A letter number specifying unit specifies a letter number of a sealed letter to be informed to a user, based on a content of a transfer error detected by an error detector. A searching unit searches a letter-number-specific print content table, in which letter number identification information for identifying each letter number, and print content information indicating a content of an image to be printed on a sheet which forms the sealed letter of each letter number are associated with each other, and finds the print content information associated with the letter number identification information of a letter number identification code read by a code reader from the sheet which forms the sealed letter of the letter number specified by the letter number specifying unit. An information displaying unit displays the print content information found by the searching unit on a display.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: August 20, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Masatoshi Fujimoto
  • Patent number: 10205296
    Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: February 12, 2019
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, HAMAMATSU PHOTONICS K.K., NTT Advanced Technology Corporation
    Inventors: Seiji Toyoda, Yuzo Sasaki, Takashi Sakamoto, Joji Yamaguchi, Tadashi Sakamoto, Koei Yamamoto, Masatoshi Fujimoto, Mahiro Yamada, Shogo Yagi, Yukihiko Ushiyama, Eiichi Sugai, Koji Yoneyama, Kazuo Fujiura
  • Patent number: 9920794
    Abstract: A torque limiter is configured from a ring body and a spring-form part provided in the ring body. The ring body includes a band-form metal plate and is bent approximately into a C-shape along the circumferential direction of a motor shaft and a lock holder. The spring-form part is formed so as to be capable of radial elastic deformation. The spring-form part is configured from main protrusions arranged in a compressed state between the motor shaft and the lock holder, and from sub-protrusions arranged in a non-compressed state. Further, grease is stored in a part or all of the concavities formed by the main protrusions and the sub-protrusions.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 20, 2018
    Assignees: JTEKT CORPORATION, TOGO SEISAKUSYO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Asakura, Masatoshi Fujimoto, Toshiaki Ogata, Yukihiko Kanayama, Hirotsune Suzuki, Yuji Nakamura, Yuzo Hirakawa, Kenji Hayashi, Hiroyuki Toyoda
  • Publication number: 20170358899
    Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 14, 2017
    Applicants: Nippon Telegraph and Telephone Corporation, Hamamatsu Photonics K.K., NTT Advanced Technology Corporation
    Inventors: Seiji TOYODA, Yuzo Sasaki, Takashi Sakamoto, Joji Yamaguchi, Tadashi Sakamoto, Koei Yamamoto, Masatoshi Fujimoto, Mahiro Yamada, Shogo Yagi, Yukihiko Ushiyama, Eiichi Sugai, Koji Yoneyama, Kazuo Fujiura
  • Patent number: 9787218
    Abstract: A driving circuit is a circuit selectively outputting one of a staircase wave and a square wave from an output terminal, to drive a capacitive load, and includes a first power source supplying a constant voltage VH, a first FET connected between the output terminal and the first power source, a first transformer in which an output side coil is connected to a gate of the first FET, a first input terminal connected to an input side coil of the first transformer via a capacitive element, a second power source supplying a constant voltage VL, a second FET connected between the output terminal and the second power source, a second transformer in which an output side coil is connected to a gate of the second FET, and a second input terminal connected to an input side coil of the second transformer via a capacitive element.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: October 10, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shogo Yamagishi, Masatoshi Fujimoto, Akira Takahashi
  • Publication number: 20170117874
    Abstract: A circuit member including: an element having a functional region; a tabular cover disposed opposite to the functional region; and a rib formed to surround the functional region, for providing a space between the functional region and the cover. The cover includes a sheet S having a thickness of 100 ?m or less. The sheet S has a tensile elastic modulus Es at 175° C. of 10 GPa or more. The tensile elastic modulus Es at 175° C. of the sheet S is preferably 20 GPa or more.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 27, 2017
    Applicant: NAGASE CHEMTEX CORPORATION
    Inventors: Takuya ISHIBASHI, Masatoshi FUJIMOTO, Takayuki HASHIMOTO
  • Publication number: 20160031578
    Abstract: A letter number specifying unit specifies a letter number of a sealed letter to be informed to a user, based on a content of a transfer error detected by an error detector. A searching unit searches a letter-number-specific print content table, in which letter number identification information for identifying each letter number, and print content information indicating a content of an image to be printed on a sheet which forms the sealed letter of each letter number are associated with each other, and finds the print content information associated with the letter number identification information of a letter number identification code read by a code reader from the sheet which forms the sealed letter of the letter number specified by the letter number specifying unit. An information displaying unit displays the print content information found by the searching unit on a display.
    Type: Application
    Filed: July 14, 2015
    Publication date: February 4, 2016
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Masatoshi FUJIMOTO
  • Publication number: 20150308511
    Abstract: This torque limiter is configured from a ring body and a spring-form part provided in the ring body. The ring body comprises a band-form metal plate and is bent approximately into a C-shape along the circumferential direction of a motor shaft and a lock holder. The spring-form part is formed so as to be capable of radial elastic deformation. The spring-form part is configured from main protrusions arranged in a compressed state between the motor shaft and the lock holder, and from sub-protrusions arranged in a non-compressed state. Further, grease is stored in a part or all of the concavities formed by the main protrusions and the sub-protrusions.
    Type: Application
    Filed: July 7, 2015
    Publication date: October 29, 2015
    Inventors: Toshihiro ASAKURA, Masatoshi FUJIMOTO, Toshiaki OGATA, Yukihiko KANAYAMA, Hirotsune SUZUKI, Yuji NAKAMURA, Yuzo HIRAKAWA, Kenji HAYASHI, Hiroyuki TOYODA
  • Patent number: 9150031
    Abstract: A controller is configured to: when printing of a plurality of print units each including a plurality of categories of sheets having different sizes is performed on a unit-by-unit basis, control a feed timing of each sheet by a paper feed unit and a transport of the sheets by a transport unit according to a transport control pattern corresponding to a printing pattern including a combination of one-side/double-side printing settings for the respective categories of sheets in each of the print units; and when the printing of the plurality of print units is consecutively performed and when a predetermined condition is satisfied, arrange an order of printing of the plurality of print units such that the print units having a same printing pattern among the plurality of print units are successively printed.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: October 6, 2015
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Masatoshi Fujimoto
  • Patent number: 9134109
    Abstract: Provided is an observation device which can obtain a phase image of a moving object rapidly with high sensitivity even when using a photodetector having a slow read-out speed per pixel. The observation device 1 comprises a light source 10, a first modulator 20, a second modulator 30, a lens 40, a beam splitter 41, a photodetector 46, and an arithmetic unit 50. The lens 40 receives scattered light generated by a moving object 2 and forms a Fourier transform image of the object 2. The photodetector 46 outputs data representing a sum in a v direction of data temporally changing at a frequency corresponding to a Doppler shift frequency of the light having reached each position on a light-receiving surface through the lens 40 at each position in a u direction at each time. The arithmetic unit 50 obtains an image of the object 2 according to the output of the photodetector 46.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 15, 2015
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hidenao Iwai, Masatoshi Fujimoto
  • Patent number: 9134110
    Abstract: Provided is an observation device which can obtain a phase image of a moving object rapidly with high sensitivity even when using a photodetector having a slow read-out speed per pixel. The observation device 1 comprises a light source 10, a first modulator 20, a second modulator 30, a lens 40, a beam splitter 41, a photodetector 46, and an arithmetic unit 50. The lens 40 receives scattered light generated by a moving object 2 and forms a Fourier transform image of the object 2. The photodetector 46 outputs data representing a sum in a v direction of data temporally changing at a frequency corresponding to a Doppler shift frequency of the light having reached each position on a light-receiving surface through the lens 40 at each position in a u direction at each time. The arithmetic unit 50 obtains an image of the object 2 according to the output of the photodetector 46.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 15, 2015
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hidenao Iwai, Masatoshi Fujimoto
  • Patent number: 9109632
    Abstract: This torque limiter is configured from a ring body and a spring-form part provided in the ring body. The ring body comprises a band-form metal plate and is bent approximately into a C-shape along the circumferential direction of a motor shaft and a lock holder. The spring-form part is formed so as to be capable of radial elastic deformation. The spring-form part is configured from main protrusions arranged in a compressed state between the motor shaft and the lock holder, and from sub-protrusions arranged in a non-compressed state. Further, grease is stored in a part or all of the concavities formed by the main protrusions and the sub-protrusions.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: August 18, 2015
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, TOGO SEISAKUSYO CORPORATION
    Inventors: Toshihiro Asakura, Masatoshi Fujimoto, Toshiaki Ogata, Yukihiko Kanayama, Hirotsune Suzuki, Yuji Nakamura, Yuzo Hirakawa, Kenji Hayashi, Hiroyuki Toyoda
  • Publication number: 20150219980
    Abstract: The device includes a spatial light modulation section having a phase modulation plane to which laser light L1 in a wavelength region longer than an ultraviolet region is input, and on which a phase of the laser light L1 is modulated at each of a plurality of two-dimensionally arrayed regions, to generate modulated laser light L2, a wavelength conversion section having a light incident plane which receives the modulated laser light L2 output from the spatial light modulation section, and converting a wavelength of the modulated laser light L2 into a wavelength in the ultraviolet region, and an image transfer optical system coupling the phase modulation plane of the spatial light modulation section and the light incident plane of the wavelength conversion section, so as to be optically conjugate systems to each other.
    Type: Application
    Filed: September 3, 2013
    Publication date: August 6, 2015
    Inventors: Hiroshi Saito, Masatoshi Fujimoto, Shingo Oishi, Kenshi Fukumitsu
  • Patent number: 8947771
    Abstract: The present invention provides an optical amplifying device which can be easily downsized, increased in output, and stabilized. An optical amplifying device 1A includes an optical amplifier 10A and an energy supplier 30. The optical amplifier 10A includes an optical amplifying medium 11 and a transparent medium 12. The energy supplier 30 supplies excitation energy (for example, excitation light) to the optical amplifying medium 11. The optical amplifying medium 11 is supplied with the excitation light to amplify light and output it. To-be-amplified light passes through the transparent medium 12 in the optical amplifying medium 11 a plurality of times. The transparent medium 12 can propagate the to-be-amplified light, for example, zigzag inside.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: February 3, 2015
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Koei Yamamoto, Toshiharu Moriguchi, Shingo Oishi, Masatoshi Fujimoto, Shigeru Sakamoto, Hironori Takahashi, Haruyasu Ito, Yoichi Kawada, Shinichiro Aoshima
  • Patent number: 8905509
    Abstract: A printing section for performing duplex printing by performing printing on each printing paper sheet fed by a feeding section and performing printing on the other side of the one-side printed printing paper sheet that has been inverted by an inverting section; a control section for exert control to alternately perform the printing on each printing paper sheet from the feeding section and the printing on each one-side printed printing paper sheet; a post-processing time obtaining section for obtaining a post-processing time for each duplex printed printing paper sheet; and a feeding timing setting section for setting a feeding interval of the printing paper sheets from the feeding section based on the post-processing time for each duplex printed printing paper sheet, and calculating a paper spacing interval between each printing paper sheet from the feeding section and each one-side printed printing paper sheet based on the post-processing time.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: December 9, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Masatoshi Fujimoto