Patents by Inventor Kazuhiro KODAMA

Kazuhiro KODAMA 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: 20190355536
    Abstract: A first conductive member is fixed to a first fixed terminal having a longitudinal direction, and a second conductive member is fixed to a second fixed terminal having a longitudinal direction. The first fixed terminal and the second fixed terminal are fixed to a partition member. A first extension portion of the first conductive member includes a first opposed portion opposed to at least one of the first fixed terminal at a first fixed contact side of the partition member. The first opposed portion extends in the longitudinal direction of the first fixed terminal.
    Type: Application
    Filed: January 11, 2018
    Publication date: November 21, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryosuke OZAKI, Shinya KIMOTO, Kazuhiro KODAMA, Seiya SAKAGUCHI, Yasutaka HIEDA, Masahiro ITO, Hideki WATANABE
  • Patent number: 10426838
    Abstract: A composite particle comprising from 50 to 80 parts by mass of cellulose, from 10 to 40 parts by mass of an inorganic compound and from 4 to 11 parts by mass of hydroxypropyl cellulose based on 100 parts by mass of a total of contents of the cellulose, the inorganic compound and the hydroxypropyl cellulose.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: October 1, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yosuke Honda, Kazuhiro Obae, Hanayo Kodama
  • Publication number: 20180319955
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Applicants: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE
  • Patent number: 10066080
    Abstract: Provided is a rubber composition that contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisanilino compound represented by formula (I). In formula (I), R1 and R2 each represent, independently of one another, a hydrogen atom or an alkyl group having a carbon number of 1-6, m and n each represent an integer of 0 or 1, A1 represents an alkylene group having a carbon number of 1-7, A2 represents an alkylene group having a carbon number of 1-8, X1 represents an oxygen atom, a sulfur atom, or an —NR3— group, and X2 represents an oxygen atom, a sulfur atom, or an —NR4— group, where R3 and R4 each represent a hydrogen atom or an alkyl group having a carbon number of 1-4, or collectively form an alkylene group having a carbon number of 1-4.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: September 4, 2018
    Assignee: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya Saiki, Hidehiro Minashima, Yuzaburo Yano, Noriaki Shiina, Kazuhiro Kodama, Mifuyu Ueno, Takashi Sato, Shinya Nakashima, Masaki Abe
  • Patent number: 10059829
    Abstract: Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit surface discoloration of a rubber article. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one amine compound represented by formula (I) shown below. In formula (I), R1 and R2 each represent, independently of one another, an alkyl group having a carbon number of 1-10, an aralkyl group, or a phenyl group, and A represents an alkylene group having a carbon number of 6-30 that may include an interposed phenylene group.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 28, 2018
    Assignee: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya Saiki, Hidehiro Minashima, Yuzaburo Yano, Noriaki Shiina, Kazuhiro Kodama, Mifuyu Ueno, Takashi Sato, Shinya Nakashima, Masaki Abe
  • Patent number: 10053553
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 21, 2018
    Assignees: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki Yukimura, Takahiro Yoshizawa, Kazuhiro Kodama, Hiroaki Yuasa, Noriaki Shiina, Takashi Sato, Hiroyuki Ishitobi, Mifuyu Ueno, Shinya Nakashima, Masaki Abe
  • Patent number: 10011704
    Abstract: Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R1, R2, R5, and R6 each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but R1 and R2 do not both simultaneously represent a hydrogen atom and R5 and R6 do not both simultaneously represent a hydrogen atom, R3 and R4 each represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 3, 2018
    Assignee: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya Saiki, Hidehiro Minashima, Yuzaburo Yano, Noriaki Shiina, Kazuhiro Kodama, Mifuyu Ueno, Takashi Sato, Shinya Nakashima, Masaki Abe
  • Patent number: 9734972
    Abstract: An electromagnetic relay includes a contactor including a fixed contact and a movable contact, and an electromagnet device for moving the movable contact. The electromagnet device includes a coil generating a first magnetic flux by energization, a tubular body including a permanent magnet generating a second magnetic flux in a direction identical to a direction of the first magnetic flux and having a hollow extending in a center axis direction, a movable element disposed in the hollow of the tubular body and reciprocating in the center axis direction, and a yoke forming a magnetic circuit passing together with the movable element and the tubular body. The magnetic circuit allows at least one of the first and second magnetic fluxes to pass through the magnetic circuit. The electromagnet device is configured to, when the coil is energized, move the movable contact to a first position by attracting the movable element with the first magnetic flux and the second magnetic flux.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: August 15, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshihisa Fukuda, Kazuhiro Kodama, Junji Takahashi, Hisashi Hiraki, Shuichi Katayama, Tomohiro Ota
  • Publication number: 20170166727
    Abstract: Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit surface discoloration of a rubber article. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one amine compound represented by formula (I) shown below. In formula (I), R1 and R2 each represent, independently of one another, an alkyl group having a carbon number of 1-10, an aralkyl group, or a phenyl group, and A represents an alkylene group having a carbon number of 6-30 that may include an interposed phenylene group.
    Type: Application
    Filed: May 22, 2015
    Publication date: June 15, 2017
    Applicant: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya SAIKI, Hidehiro MINASHIMA, Yuzaburo YANO, Noriaki SHIINA, Kazuhiro KODAMA, Mifuyu UENO, Takashi SATO, Shinya NAKASHIMA, Masaki ABE
  • Publication number: 20170166728
    Abstract: Provided is a rubber composition that contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisanilino compound represented by formula (I). In formula (I), R1 and R2 each represent, independently of one another, a hydrogen atom or an alkyl group having a carbon number of 1-6, m and n each represent an integer of 0 or 1, A1 represents an alkylene group having a carbon number of 1-7, A2 represents an alkylene group having a carbon number of 1-8, X1 represents an oxygen atom, a sulfur atom, or an —NR3— group, and X2 represents an oxygen atom, a sulfur atom, or an —NR4— group, where R3 and R4 each represent a hydrogen atom or an alkyl group having a carbon number of 1-4, or collectively form an alkylene group having a carbon number of 1-4.
    Type: Application
    Filed: May 22, 2015
    Publication date: June 15, 2017
    Applicant: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya SAIKI, Hidehiro MINASHIMA, Yuzaburo YANO, Noriaki SHIINA, Kazuhiro KODAMA, Mifuyu UENO, Takashi SATO, Shinya NAKASHIMA, Masaki ABE
  • Publication number: 20170137604
    Abstract: Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R1, R2, R5, and R6 each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but R1 and R2 do not both simultaneously represent a hydrogen atom and R5 and R6 do not both simultaneously represent a hydrogen atom, R3 and R4 each represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1.
    Type: Application
    Filed: May 22, 2015
    Publication date: May 18, 2017
    Applicant: OTSUKA CHEMICAL CO., LTD.
    Inventors: Aya SAIKI, Hidehiro MINASHIMA, Yuzaburo YANO, Noriaki SHIINA, Kazuhiro KODAMA, Mifuyu UENO, Takashi SATO, Shinya NAKASHIMA, Masaki ABE
  • Patent number: 9546232
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of the rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific amidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: January 17, 2017
    Assignees: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki Yukimura, Takahiro Yoshizawa, Kazuhiro Kodama, Hiroaki Yuasa, Noriaki Shiina, Takashi Sato, Hiroyuki Ishitobi, Mifuyu Ueno, Shinya Nakashima, Masaki Abe
  • Publication number: 20160336133
    Abstract: An electromagnetic relay includes a contactor including a fixed contact and a movable contact, and an electromagnet device for moving the movable contact. The electromagnet device includes a coil generating a first magnetic flux by energization, a tubular body including a permanent magnet generating a second magnetic flux in a direction identical to a direction of the first magnetic flux and having a hollow extending in a center axis direction, a movable element disposed in the hollow of the tubular body and reciprocating in the center axis direction, and a yoke forming a magnetic circuit passing together with the movable element and the tubular body. The magnetic circuit allows at least one of the first and second magnetic fluxes to pass through the magnetic circuit. The electromagnet device is configured to, when the coil is energized, move the movable contact to a first position by attracting the movable element with the first magnetic flux and the second magnetic flux.
    Type: Application
    Filed: February 4, 2015
    Publication date: November 17, 2016
    Inventors: Yoshihisa FUKUDA, Kazuhiro KODAMA, Junji TAKAHASHI, Hisashi HIRAKI, Shuichi KATAYAMA, Tomohiro OTA
  • Patent number: 9267020
    Abstract: A rubber composition that can improve in good balance the fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire that uses this rubber composition are provided. This rubber composition contains a rubber component, and carbon black and/or silica, wherein based on 100% by mass of the rubber component, the rubber component contains 5 to 50% by mass of natural rubber, 0.3 to 10% by mass of an epoxidized natural rubber, and at least 5% by mass of a conjugated diene polymer that has a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified, and wherein a total content of the carbon black and the silica is 3 to 100 parts by mass per 100 parts by mass of the rubber component.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 23, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshikazu Kondo, Jun Okamoto, Sakae Okubo, Ryoichi Kasahara, Kenji Murata, Kazuhiro Kodama, Kazuyuki Nishioka
  • Publication number: 20150361248
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 17, 2015
    Applicants: OTSUKA CHEMICAL CO., LTD., BRIDGESTONE CORPORATION
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE
  • Publication number: 20150353657
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of the rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific amidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 10, 2015
    Applicants: OTSUKA CHEMICAL CO., LTD., BRIDGESTONE CORPORATION
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE
  • Patent number: 9159512
    Abstract: An electromagnetic opening/closing device A1 includes a detector 5 for detecting an opened or closed state of a contact unit 1; a malfunction determination unit 6 configured to determine presence or absence of malfunction based on the opened or closed state of the contact unit 1 detected through the detector 5 and an opened or closed state of the contact unit 1 corresponding to an exterior command; and an output unit 8 configured to supply an exterior with a determination result by the malfunction determination unit 6.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: October 13, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Kodama, Takeshi Okada
  • Patent number: 9130355
    Abstract: To provide a technology of improving the corrosion resistance of a spark plug. A spark plug having a metal shell on the outer surface of which a nickel plated layer is formed as a protective surface film. The nickel plated layer is such that when the atomic concentrations of constituent elements are measured in a depth direction by an X-ray photoelectron spectroscopy (XPS), the concentration of carbon atoms is 1.0% to 10.0% at a depth at which the atomic concentration of Ni elements is 80%.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: September 8, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kazuhiro Kodama, Hiroaki Nasu
  • Patent number: 9117609
    Abstract: A contact resistance value detected by a detection means (a resistance detection part) is compared with a predetermined threshold value. A determining means (an abnormality determining part) determines that there is a failure when the contact resistance value exceeds the predetermined threshold value, and then an abnormality detection signal is outputted from an output means (an output part). Therefore, it is possible to detect a failure in a contact, such as oxidization generated on a surface of a contact or contact pressure reduction generated between contacts, based on the contact resistance value of a contact part.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: August 25, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kazuhiro Kodama
  • Patent number: 9097766
    Abstract: An electromagnetic opening/closing device comprises: a measurement part that measure a change associated with opening/closing of a contact (the number of times the contact has been opened or closed); a life determining part that determines a state of the contact, based on the change (the number of times the contact has been opened or closed) measured by the measurement part; and an output part that outputs the determined result by the life determining part to outside. Accordingly, differently from the conventional technique, an apparatus, equipped with the electromagnetic opening/closing device, has no need to count the number of times the contact has been opened or closed in order to manage the lifetime of the device, and it is possible to easily manage the lifetime compared with conventional devices.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 4, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Kodama, Takeshi Okada