Patents by Inventor Takeyuki Yamamoto

Takeyuki Yamamoto 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: 20240101467
    Abstract: The present invention relates to a photosensitive glass in which a Li2SiO3 crystal is precipitated by exposure and heat treatment, in which the photosensitive glass has a value of Formula (A) described below of 0.50 or more and 0.75 or less, and the photosensitive glass has a dielectric loss tangent at 20° C. and 10 GHz of 0.0090 or less, [Li2O]/([Li2O]+[Na2O]+[K2O]) Formula (A), in Formula (A), [Li2O], [Na2O], and [K2O] respectively indicate contents of Li2O, Na2O, and K2O in the photosensitive glass in terms of mole percentage based on oxides.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 28, 2024
    Applicant: AGC Inc.
    Inventors: Takeyuki KATO, Yutaka KUROIWA, Nobuo INUZUKA, Hirofumi YAMAMOTO
  • Publication number: 20240098891
    Abstract: The present invention relates to a circuit board for a high-frequency device, including: a glass substrate in which a crystal is precipitated and cuttable by etching, and which has a dielectric loss tangent at 20° C. and 10 GHz of 0.0090 or less, and relates to a high-frequency device including the circuit board.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 21, 2024
    Applicant: AGC Inc.
    Inventors: Takeyuki KATO, Yutaka KUROIWA, Nobuo INUZUKA, Hirofumi YAMAMOTO
  • Publication number: 20210252474
    Abstract: A fibrous granulation binder that is for active carbon granules that are formed from aggregates of active carbon particles and has a D50 particle size, as measured by laser diffraction, of 3.5-86.7 ?m. When a fibrous binder is used to produce active carbon granules, setting an appropriate particle size for the fibrous binder makes it possible to reliably produce high-strength active carbon granules.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 19, 2021
    Inventors: Kazuhiro SATO, Masanari TOYAMA, Hirohito NAKAJIMA, Takeyuki YAMAMOTO, Takahisa ISHIKAWA, Hiroki MAENAMI, Hajime OTA, Takao OTSUKA, Daiki HONDA, Hiroto TASAKI
  • Publication number: 20210252473
    Abstract: An active carbon molded body that comprises a plurality of active carbon granules that are foiled from aggregates of active carbon particles. The active carbon granules include a fibrous granulation binder. A plurality of communicating holes are foamed in the active carbon molded body. A pore size distribution curve obtained for the active carbon molded body by a mercury intrusion has: a first peak that is from first pores that are famed between active carbon particles; and a second peak that is from second pores that are foamed between active carbon particles and is for a smaller pore size than the first peak. The present invention thereby provides an active carbon molded body that has high water purification capacity and has a filtration flow rate that is at least a prescribed value.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 19, 2021
    Inventors: Kazuhiro SATO, Masanari TOYAMA, Hirohito NAKAJIMA, Takeyuki YAMAMOTO, Takahisa ISHIKAWA, Hiroki MAENAMI, Hajime OTA, Takao OTSUKA, Daiki HONDA, Hiroto TASAKI
  • Publication number: 20210245134
    Abstract: An active carbon molded body that comprises a plurality of active carbon granules that are formed from aggregates of active carbon particles. The active carbon granules include a fibrous granulation binder. The active carbon molded body is formed as a result of the plurality of active carbon granules being aggregated by means of the fibrous granulation binder in the active carbon granules. The present invention is also an active carbon molded body production method in which active carbon granules that have been formed by aggregating active carbon particles by means of a fibrous binder are molded by simultaneous application of heat and pressure without separate addition of a molding binder. The present invention thereby provides: an active carbon molded body that has high purification capacity and good production efficiency; and a production method for the active carbon molded body.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 12, 2021
    Inventors: Kazuhiro SATO, Masanari TOYAMA, Hirohito NAKAJIMA, Takeyuki YAMAMOTO, Takahisa ISHIKAWA, Hiroki MAENAMI, Hajime OTA, Takao OTSUKA, Daiki HONDA, Hiroto TASAKI
  • Publication number: 20200282377
    Abstract: Provided is a granular activated carbon which has a filtered flow rate of a predetermined value or higher, and a high water purification performance; and a method for manufacturing the same. A granular activated carbon comprises a plurality of activated carbon granules and a binder for binding the plurality of activated carbon granules, wherein the binder is composed of net-like fibers. Also, a method for manufacturing the granular activated carbon includes a step for spraying and drying slurry which is obtained by dispersing the activated carbon granules and the fibers in water.
    Type: Application
    Filed: August 6, 2018
    Publication date: September 10, 2020
    Applicant: LIXIL Corporation
    Inventors: Kazuhiro SATO, Masanari TOYAMA, Hirohito NAKAJIMA, Takeyuki YAMAMOTO, Takahisa ISHIKAWA, Hiroki MAENAMI, Naoya TAMURA, Hajime OTA
  • Patent number: 9205544
    Abstract: A fastening part tightening management system (1) that manages a tightening state of a fastening part such as a screw to fix a constituent part of an aircraft in an aircraft assembling process includes a manual torque wrench (2) that tightens a fastening part up to a set torque while activating a tightening torque and detects and transmits tightening torque information acting on the fastening part, a marking pen (3) that performs marking to the fastening part, the tightening operation of which is ended by the manual torque wrench (2), detects a writing pressure in the marking, and transmits marking completion information; an information processing device (5) that determines a tightening state of the fastening part based on the tightening torque information and the marking completion information, and a mobile information terminal (4) that notifies an operator of a determination result obtained by the information processing device (5).
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 8, 2015
    Assignee: SANYO MACHINE WORKS, LTD.
    Inventors: Takeyuki Yamamoto, Michihiro Maeda, Katsuo Tokida
  • Publication number: 20130174698
    Abstract: A fastening part tightening management system (1) that manages a tightening state of a fastening part such as a screw to fix a constituent part of an aircraft in an aircraft assembling process includes a manual torque wrench (2) that tightens a fastening part up to a set torque while activating a tightening torque and detects and transmits tightening torque information acting on the fastening part, a marking pen (3) that performs marking to the fastening part, the tightening operation of which is ended by the manual torque wrench (2), detects a writing pressure in the marking, and transmits marking completion information; an information processing device (5) that determines a tightening state of the fastening part based on the tightening torque information and the marking completion information, and a mobile information terminal (4) that notifies an operator of a determination result obtained by the information processing device (5).
    Type: Application
    Filed: July 29, 2011
    Publication date: July 11, 2013
    Inventors: Takeyuki Yamamoto, Michihiro Maeda, Katsuo Tokida
  • Publication number: 20070172812
    Abstract: A tissue equivalent for transplantation having a three-dimensional structure which is cultured in vitro, contains cells to be transplanted and which can be transplanted into a living body after the culture, characterized by including a scaffold layer mainly culturing a scaffold constituting the three-dimensional structure and a cell layer which is localized at least in a part of the surface of the tissue equivalent for transplantation continuously with the scaffold layer and which contains the cells to be transplanted or extra cellular matrix in a larger amount than the scaffold layer. This tissue equivalent is appropriately employed as a tissue equivalent for transplantation in a relatively large size. This tissue equivalent enables realization of prompt fixation to the neighborhood of the transplanted tissue and prevention of falling off.
    Type: Application
    Filed: March 27, 2007
    Publication date: July 26, 2007
    Inventors: Mitsuo Ochi, Yuji Uchio, Kenzo Kawasaki, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Patent number: 7198908
    Abstract: To determine the transplant compatibility of an in vitro cultured tissue, a method measures the stiffness of the cultured tissue by using a stiffness measuring device, which stiffness measuring device includes a detecting unit and calculation means, the detecting unit includes a contact unit, a vibrator connected to the contact unit, and a vibration detecting unit for detecting the vibration of the vibrator, and the calculation means determines stiffness information by calculation based on the detected result from the vibration detecting element; and by bringing the contact unit into contact with the cultured tissue. With this method the transplant compatibility of the cultured tissue can be nondestructively and easily determined easily and the quality of the cultured tissue can be appropriately controlled.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 3, 2007
    Assignees: Japan Tissue Engineering Co., Ltd.
    Inventors: Mitsuo Ochi, Junji Iwasa, Masatoshi Tobita, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Publication number: 20050019748
    Abstract: To determine the transplant compatibility of an in vitro cultured tissue, a method measures the stiffness of the cultured tissue by using a stiffness measuring device, which stiffness measuring device includes a detecting unit and calculation means, the detecting unit includes a contact unit, a vibrator connected to the contact unit, and a vibration detecting unit for detecting the vibration of the vibrator, and the calculation means determines stiffness information by calculation based on the detected result from the vibration detecting element; and by bringing the contact unit into contact with the cultured tissue. With this method the transplant compatibility of the cultured tissue can be nondestructively and easily determined easily and the quality of the cultured tissue can be appropriately controlled.
    Type: Application
    Filed: August 19, 2004
    Publication date: January 27, 2005
    Inventors: Mitsuo Ochi, Junji Iwasa, Masatoshi Tobita, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Patent number: 6815179
    Abstract: To determine the transplant compatibility of an in vitro cultured tissue, a method measures the stiffness of the cultured tissue by using a stiffness measuring device, which stiffness measuring device includes a detecting unit and calculation means, the detecting unit includes a contact unit, a vibrator connected to the contact unit, and a vibration detecting unit for detecting the vibration of the vibrator, and the calculation means determines stiffness information by calculation based on the detected result from the vibration detecting element; and by bringing the contact unit into contact with the cultured tissue. With this method the transplant compatibility of the cultured tissue can be nondestructively and easily determined easily and the quality of the cultured tissue can be appropriately controlled.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: November 9, 2004
    Assignees: Japan Tissue Engineering Co., Ltd.
    Inventors: Mitsuo Ochi, Junji Iwasa, Masatoshi Tobita, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Publication number: 20040030406
    Abstract: A tissue equivalent for transplantation having a three-dimensional structure which is cultured in vitro, contains cells to be transplanted and which can be transplanted into a living body after the culture, characterized by including a scaffold layer mainly culturing a scaffold constituting the three-dimensional structure and a cell layer which is localized at least in a part of the surface of the tissue equivalent for transplantation continuously with the scaffold layer and which contains the cells to be transplanted or extra cellular matrix in a larger amount than the scaffold layer. This tissue equivalent is appropriately employed as a tissue equivalent for transplantation in a relatively large size. This tissue equivalent enables realization of prompt fixation to the neighborhood of the transplanted tissue and prevention of falling off.
    Type: Application
    Filed: June 5, 2003
    Publication date: February 12, 2004
    Inventors: Mitsuo Ochi, Yuji Uchio, Kenzo Kawasaki, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Publication number: 20030124168
    Abstract: Base materials for tissue regeneration which enable the tissue regeneration, have mechanical properties needed in the tissue regeneration and can disappear via degradation in vivo after the completion of the tissue regeneration; and implantable materials with the use of the same. The above-described base materials for tissue regeneration comprise polyrotaxane, wherein biocompatible groups having bulky substituents have been introduced via hydrolyzable bond into both ends of a linear molecule penetrating plural cyclic molecules, or a polyrotaxane hydrogel having a network structure formed by crosslinking the cyclic molecules to each other, the biocompatible groups to each other, or the cyclic molecules to the biocompatible groups in each polyrotaxane molecule.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 3, 2003
    Applicant: JAPAN TISSUE ENGINEERING CO., LTD.
    Inventors: Nobuhiko Yui, Tooru Ooya, Masakazu Kato, Takeyuki Yamamoto
  • Publication number: 20020115197
    Abstract: To determine the transplant compatibility of an in vitro cultured tissue, a method measures the stiffness of the cultured tissue by using a stiffness measuring device, which stiffness measuring device includes a detecting unit and calculation means, the detecting unit includes a contact unit, a vibrator connected to the contact unit, and a vibration detecting unit for detecting the vibration of the vibrator, and the calculation means determines stiffness information by calculation based on the detected result from the vibration detecting element; and by bringing the contact unit into contact with the cultured tissue. With this method the transplant compatibility of the cultured tissue can be nondestructively and easily determined easily and the quality of the cultured tissue can be appropriately controlled.
    Type: Application
    Filed: August 23, 2001
    Publication date: August 22, 2002
    Applicant: MITSUO OCHI and JAPAN TISSUE ENGINEERING CO.,LTD.
    Inventors: Mitsuo Ochi, Junji Iwasa, Masatoshi Tobita, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Publication number: 20020115060
    Abstract: To determine the transplant compatibility of an in vitro cultured tissue, a method measures the stiffness of the cultured tissue by using a stiffness measuring device, which stiffness measuring device includes a detecting unit and calculation means, the detecting unit includes a contact unit, a vibrator connected to the contact unit, and a vibration detecting unit for detecting the vibration of the vibrator, and the calculation means determines stiffness information by calculation based on the detected result from the vibration detecting element; and by bringing the contact unit into contact with the cultured tissue. With this method the transplant compatibility of the cultured tissue can be nondestructively and easily determined easily and the quality of the cultured tissue can be appropriately controlled.
    Type: Application
    Filed: February 27, 2002
    Publication date: August 22, 2002
    Applicant: MITSUO OCHI and JAPAN TISSUE ENGINEERING CO., LTD.
    Inventors: Mitsuo Ochi, Junji Iwasa, Masatoshi Tobita, Masakazu Katoh, Takeyuki Yamamoto, Rika Fukushima, Toyokazu Kurushima
  • Patent number: 5609432
    Abstract: A ballpoint pen contains an aqueous ink composition into which ink is directly filled. The pen is free from ink dripping and has improved writing performance. The aqueous ink composition is directly filled into an ink reservoir tube equipped with a ballpoint pen tip. The aqueous ink composition includes (a) an aqueous medium, (b) a pigment and (c) a carboxyl group-containing crosslinked hydrophilic polymer. The hydrophilic polymer swells and disperses in a gel state in the form of particles having a particle diameter of 0.5 to 10 .mu.m. The polymer is crosslinked with a crosslinkable monomer having at least two polymerizable unsaturated groups in an amount of 0.5 mol % or more based on the total of a carboxyl group-containing monomer and a copolymerizable monoethylenic monomer used together, if desired. The ink reservoir tube tip has a clearance between a ball and a ball receiver in the range of 10 to 40 .mu.m.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: March 11, 1997
    Assignee: Kabushiki Kaisha Pilot
    Inventors: Takeyuki Yamamoto, Yasuyuki Sugimoto, Itaru Wakagi, Shinichi Murakata, Yasuzo Murata