Patents by Inventor Takashi Naito

Takashi Naito 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: 10913680
    Abstract: The purpose of the present invention is to provide a lead-free glass composition in which crystallization is suppressed and which has a low softening point. This lead-free glass composition is characterized by containing silver oxide, tellurium oxide and vanadium oxide, and further containing at least one compound selected from among yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, gallium oxide, indium oxide, iron oxide, tungsten oxide and molybdenum oxide as an additional component, and in that the content values (mol %) of silver oxide, tellurium oxide and vanadium oxide satisfy the relationships Ag2O>TeO2?V2O5 and Ag5O?2V2O5 when calculated in terms of the oxides, and in that the content of TeO2 is 25-37 mol. %.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: February 9, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takashi Naito, Takuya Aoyagi, Tatsuya Miyake, Takeshi Kondo, Hiroki Kaneko, Kazutaka Okamoto
  • Publication number: 20200392036
    Abstract: The present invention provides a highly reliable multilayered glass panel and an encapsulating material for achieving the highly reliable multilayered glass panel. The encapsulating material includes lead-free low melting glass particles containing vanadium oxide and tellurium oxide, low thermal expansion filler particles, and glass beads as a solid content. A volume fraction of the glass beads in the solid content is not less than 10% to not more than 35%, and a volume fraction of the lead-free low melting glass particles in the solid content is larger than a volume fraction of the low thermal expansion filler in the solid content.
    Type: Application
    Filed: November 1, 2018
    Publication date: December 17, 2020
    Inventors: Takashi NAITO, Shinichi TACHIZONO, Kei YOSHIMURA, Yuji HASHIBA, Hironori SUZUKI, Taigo ONODERA, Tatsuya MIYAKE, Akitoyo KONNO
  • Publication number: 20200326191
    Abstract: A position calculating apparatus is provided with: an acquirer configured to obtain a position of a host vehicle; a detector configured to detect surrounding environment including structures around the host vehicle; a calculator configured to extract a map of surroundings of the host vehicle on the basis of the obtained position, configured to compare the extracted map with a surrounding image based on the detected surrounding environment, and configured to calculate a position and a direction of the host vehicle on the extracted map; a display device configured to superimpose and display the extracted map on the surrounding image on the basis of the calculated position and the calculated direction; and a corrector configured to correct the calculated position and the calculated direction with reference to a inputted correction instruction if the correction instruction is inputted through an input device.
    Type: Application
    Filed: June 25, 2020
    Publication date: October 15, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi NAITO
  • Patent number: 10731996
    Abstract: A position calculating apparatus is provided with: an acquirer configured to obtain a position of a host vehicle; a detector configured to detect surrounding environment including structures around the host vehicle; a calculator configured to extract a map of surroundings of the host vehicle on the basis of the obtained position, configured to compare the extracted map with a surrounding image based on the detected surrounding environment, and configured to calculate a position and a direction of the host vehicle on the extracted map; a display device configured to superimpose and display the extracted map on the surrounding image on the basis of the calculated position and the calculated direction; and a corrector configured to correct the calculated position and the calculated direction with reference to a inputted correction instruction if the correction instruction is inputted through an input device.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 4, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi Naito
  • Publication number: 20200239355
    Abstract: The purpose of the present invention is to provide a neutron-absorbing material which has high neutron absorption performance, is less apt to suffer structural degradation caused by irradiation with neutrons or ? rays, and has satisfactory water resistance. The glass composition according to the present invention is characterized by containing Gd2O3, B2O3, CeO2, and Bi2O3 when the components are expressed in terms of oxide, the total amount of Gd2O3 and B2O3 being 65 mol % or greater in terms of oxide amount.
    Type: Application
    Filed: August 5, 2016
    Publication date: July 30, 2020
    Applicant: HITACHI, LTD.
    Inventors: Takashi NAITO, Takuya AOYAGI, Tatsuya MIYAKE, Shin IMAMURA, Hiroki KANEKO
  • Publication number: 20200165863
    Abstract: There is provided a gas trapping material and vacuum heat insulation equipment where the gas trapping material can be activated in a sealing step of the vacuum heat insulation equipment, and production efficiency can be enhanced by maintaining a high gas trapping characteristic even when a gas is released in a baking step or in a sealing step under an air atmosphere. The gas trapping material contains porous metal oxide and silver particles having an average particle size of 0.5 nm to 100 nm inclusive.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Taigo ONODERA, Takashi NAITO, Tatsuya MIYAKE, Takuya AOYAGI, Shinichi TACHIZONO, Yuji HASHIBA, Takahiro IKABATA
  • Patent number: 10566503
    Abstract: The purpose of the present invention is to decrease the process temperature for a multilayer glass into which an optical element is to be packed, thereby reducing the damage to the optical element during processing. A multilayer glass according to the present invention is so configured that a gap formed between glass plates is sealed with a sealing material that can fix at a process temperature lower than a temperature employed for the processing of an optical element (see FIG. 1).
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 18, 2020
    Assignee: HITACHI, LTD.
    Inventors: Hiroki Kaneko, Takashi Naito, Yoshifumi Sekiguchi, Tatsuya Miyake
  • Publication number: 20190367405
    Abstract: The lead-free glass composition contains vanadium oxide, tellurium oxide, alkaline metal oxide, iron oxide, barium oxide, and tungsten oxide while containing substantially no phosphorus oxide, and further contains at least one of additional components including yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, and gallium oxide. A content of the tellurium oxide is equal to or more than 25 mol %, and equal to or less than 43 mol % in terms of oxide TeO2. A content of the alkaline metal oxide is equal to or more than 4 mol %, and equal to or less than 27 mol % in terms of oxide R2O (R: alkali metal element).
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Takashi NAITO, Taigo ONODERA, Tatsuya MIYAKE, Akitoyo KONNO, Shinichi TACHIZONO, Yuji HASHIBA, Keita YUGUCHI, Takahiro IKABATA, Masaharu MATSUURA
  • Publication number: 20190346847
    Abstract: An autonomous driving system includes a target object position recognition unit configured to recognize a target object position detected by a vehicle-mounted sensor based on map information in a map database, a vehicle position recognition unit configured to recognize a vehicle position, a relative-relationship-on-map acquisition unit configured to acquire a relative-relationship-on-map between the target object and the vehicle based on the target object position and the vehicle position on the map, a detected-relative-relationship acquisition unit configured to acquire a detected-relative-relationship between the target object detected by the sensor and the vehicle based on a result of detection performed by the sensor, a map accuracy evaluation unit configured to evaluate map accuracy of the map information based on the relative-relationship-on-map and the detected-relative-relationship, and an autonomous driving permission unit configured to permit an autonomous driving control using the map information b
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuhide KAMATA, Ryo IGARASHI, Kazuhiko KAMIKADO, Kiyosumi KIDONO, Kunihiro GOTO, Takashi NAITO
  • Patent number: 10449622
    Abstract: It is an objective of the invention to provide a conductive joint article exhibiting electrical joinability comparable to that of solder joining of easy-to-solder joinable metals even when a joined member of the conductive joint article is made of a hard-to-solder joinable metal. There is provided a conductive joint article with conductive joined members electrically joined via a joining layer, at least one of the joined members being made of a hard-to-solder joinable metal. The joining layer comprises an oxide glass phase and a conductive metal phase. The oxide glass phase includes vanadium as a major constituent and at least one of phosphorus, barium and tungsten as an accessory constituent, and has a glass transition point of 390° C. or less. And, connection resistance between the joined members exhibits less than 1×10?5 ?/mm2.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: October 22, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Takashi Naito, Shinichi Tachizono, Kei Yoshimura, Yuji Hashiba, Kiyomi Nakamura, Taigo Onodera, Takuya Aoyagi, Tatsuya Miyake
  • Patent number: 10442724
    Abstract: The purpose of the present invention is to provide a joining material that can easily join materials to be joined even when characteristics and physical properties thereof differ greatly. To solve the above problem, the joining material according to the present invention is characterized by including a base material, a first layer that is disposed on one surface of the base material, and a second layer that is disposed on the other surface of the base material and includes a phase having a different coefficient of thermal expansion to that of the phase configuring the first layer, at least one of the first and second layers including glass having a softening point of 600° C. or lower.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: October 15, 2019
    Assignee: HITACHI LTD.
    Inventors: Takuya Aoyagi, Takashi Naito, Tatsuya Miyake
  • Patent number: 10392296
    Abstract: A sealed structural body has an internal space and is made of glass, wherein at least a part of a boundary between the internal space of the sealed structural body and the outside is separated by a sealing material containing a metal material and a lead-free oxide glass. The lead-free oxide glass contains at least one of element Ag or P, Te, and V.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 27, 2019
    Assignee: HITACHI, LTD.
    Inventors: Motomune Kodama, Masanori Miyagi, Takuya Aoyagi, Takashi Naito
  • Patent number: 10391629
    Abstract: An air pump apparatus is provided which uses an electric actuator that can electrically operate a pneumatic device such as a suction pad or air chuck. The air pump apparatus includes an air cylinder having a built-in piston, and an electric actuator configured to move the piston linearly and relatively to the air cylinder, using the electric motor as a drive source. Air under negative pressure and/or positive pressure generated by the electric actuator causing the piston of the air cylinder to move linearly is used to operate a pneumatic device.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 27, 2019
    Assignee: THK CO., LTD.
    Inventors: Koji Ozawa, Masaki Nagatsuka, Munehiro Iwata, Aiko Tagawa, Miki Tobita, Takashi Naito
  • Patent number: 10358379
    Abstract: There is disclosed a heat-insulating member including a pair of substrates and an airtight sealing part, in which the airtight sealing part is formed in an outer peripheral part between the pair of substrates to form a space between the pair of substrates, the space being in a vacuum or reduced pressure state, a sealing material that forms the airtight sealing part includes a low-melting glass, and the low-melting glass contains a vanadium oxide, barium oxide, phosphorus oxide, and tungsten oxide, in which the following two relational expressions are satisfied in terms of oxide contents: V2O5+BaO+P2O5+WO3?90 and V2O5>BaO>P2O5>WO3 (wherein unit: mol %). Thereby, influence on environmental impact can be reduced and maintenance of airtightness and an improvement in acid resistance can be achieved.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: July 23, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Takashi Naito, Shinichi Tachizono, Kei Yoshimura, Yuji Hashiba, Takuya Aoyagi, Motomune Kodama, Taigo Onodera, Tadashi Fujieda
  • Publication number: 20190217574
    Abstract: There is provided a bonding article comprising: an electrical insulating substrate; a first adhesion layer laminated on one surface of the electrical insulating substrate; and a second adhesion layer laminated on the other surface of the electrical insulating substrate. Both the first adhesion layer and the second adhesion layer include a low-melting-point lead-free glass containing vanadium oxide and tellurium oxide as chemical constituents and having a softening point of 360° C. or lower. And, when contours of the first adhesion layer, the electrical insulating substrate, and the second adhesion layer are projected parallel to one another along the lamination direction, the contour of the first adhesion layer is located inside the contour of the second adhesion layer.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 18, 2019
    Inventors: Takashi NAITO, Shinichi TACHIZONO, Kei YOSHIMURA, Yuji HASHIBA, Taigo ONODERA, Tatsuya MIYAKE, Akitoyo KONNO
  • Patent number: 10259740
    Abstract: An object of the present invention is to provide a multi-layer glass with high degree of vacuum and high mass productivity. In order to achieve the object, the multi-layer glass according to the present invention includes a first glass substrate, a second glass substrate disposed facing the first glass substrate with a space therebetween, a sealing portion, which contains a glass composition and is disposed in a peripheral edge portion of the space between the first glass substrate and the second glass substrate, and column members disposed between the first glass substrate and the second glass substrate, wherein the column member is made of a metal or alloy, and a melting point of the metal or alloy is higher than a softening point of the glass composition and is lower than or equal to a temperature 20° C. higher than a flow point of the glass composition.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: April 16, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tatsuya Miyake, Takashi Naito, Takuya Aoyagi, Eiichi Ogiwara, Akihito Iwai, Shinichi Tachizono, Kei Yoshimura, Yuji Hashiba
  • Patent number: 10252938
    Abstract: The present invention aims at providing a lead-free glass composition that can be soften and flowed at a firing temperature that is equal to or lower than that of conventional low melting point lead glass. Furthermore, the present invention aims at providing a lead-free glass composition having fine thermal stability and fine chemical stability in addition to that property. The lead-free glass composition according to the present invention is characterized by comprising at least Ag2O, V2O5 and TeO2 when the components are represented by oxides, wherein the total content ratio of Ag2O, V2O5 and TeO2 is 75 mass % or more. Preferably, the lead-free glass composition comprises 10 to 60 mass % of Ag2O, 5 to 65 mass % of V2O5, and 15 to 50 mass % of TeO2.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: April 9, 2019
    Assignee: HITACHI, LTD.
    Inventors: Yuichi Sawai, Takashi Naito, Takuya Aoyagi, Tadashi Fujieda
  • Patent number: 10177069
    Abstract: A heat-dissipating structure is formed by bonding a first member and a second member, each being any of a metal, ceramic, and semiconductor, via a die bonding member; or a semiconductor module formed by bonding a semiconductor chip, a metal wire, a ceramic insulating substrate, and a heat-dissipating base substrate including metal, with a die bonding member interposed between each. At least one of the die bonding members includes a lead-free low-melting-point glass composition and metal particles. The lead-free low-melting-point glass composition accounts for 78 mol % or more in terms of the total of the oxides V2O5, TeO2, and Ag2O serving as main ingredients. The content of each of TeO2 and Ag2O is 1 to 2 times the content of V2O5, and at least one of BaO, WO3, and P2O5 is included as accessory ingredients, and at least one of Y2O3, La2O3, and Al2O3 is included as additional ingredients.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 8, 2019
    Assignee: HITACHI LTD.
    Inventors: Takashi Naito, Motomune Kodama, Takuya Aoyagi, Shigeru Kikuchi, Takashi Nogawa, Mutsuhiro Mori, Eiichi Ide, Toshiaki Morita, Akitoyo Konno, Taigo Onodera, Tatsuya Miyake, Akihiro Miyauchi
  • Publication number: 20180354843
    Abstract: The purpose of the present invention is to provide a lead-free glass composition in which crystallization is suppressed and which has a low softening point. This lead-free glass composition is characterized by containing silver oxide, tellurium oxide and vanadium oxide, and further containing at least one compound selected from among yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, gallium oxide, indium oxide, iron oxide, tungsten oxide and molybdenum oxide as an additional component, and in that the content values (mol %) of silver oxide, tellurium oxide and vanadium oxide satisfy the relationships Ag2O>TeO2?V2O5 and Ag5O?2V2O5 when calculated in terms of the oxides, and in that the content of TeO2 is 25-37 mol. %.
    Type: Application
    Filed: January 11, 2017
    Publication date: December 13, 2018
    Applicant: HITACHI, LTD.
    Inventors: Takashi NAITO, Takuya AOYAGI, Tatsuya MIYAKE, Takeshi KONDO, Hiroki KANEKO, Kazutaka OKAMOTO
  • Publication number: 20180294386
    Abstract: The purpose of the present invention is to decrease the process temperature for a multilayer glass into which an optical element is to be packed, thereby reducing the damage to the optical element during processing. A multilayer glass according to the present invention is so configured that a gap formed between glass plates is sealed with a sealing material that can fix at a process temperature lower than a temperature employed for the processing of an optical element (see FIG. 1).
    Type: Application
    Filed: March 14, 2016
    Publication date: October 11, 2018
    Applicant: HITACHI, LTD.
    Inventors: Hiroki KANEKO, Takashi NAITO, Yoshifumi SEKIGUCHI, Tatsuya MIYAKE