Patents by Inventor Eiji Saitoh

Eiji Saitoh 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: 11105376
    Abstract: In order to determine information about the generation of heat in a bearing (10) in a simple manner, a bearing (10) includes an outer ring (12) secured to a securing member, and an inner ring (11) provided on the inside of the outer ring (12) and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor (14) is provided as a coating on a securing-side surface that includes the outer ring (12), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: August 31, 2021
    Assignees: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Akihiro Kirihara, Masahiko Ishida, Koichi Terashima, Ryohto Sawada, Eiji Saitoh, Yasuyuki Oikawa, Ryo Iguchi, Masao Ono
  • Publication number: 20200395526
    Abstract: To protect the surface of a member exposed to a high-temperature environment and detect surface temperature or heat flow distribution, this magnetic thermoelectric conversion element, which is provided on the surface of a support in contact with a heat source, has: a magnetic body; an electromotive body which is magnetically coupled to the magnetic body and has electrical conductivity; and a heat-resistant metal oxide film covering the magnetic body and the electromotive body.
    Type: Application
    Filed: November 21, 2018
    Publication date: December 17, 2020
    Applicants: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Masahiko ISHIDA, Akihiro KIRIHARA, Ryohto SAWADA, Eiji SAITOH, Ryo IGUCHI, Yasuyuki OIKAWA, Masao ONO
  • Patent number: 10791811
    Abstract: A strap used in a portable terminal includes a plate portion configured to be mounted on a surface of a main body of the portable terminal by attaching to a strap fixing portion of the main body, a rotation mechanism portion located at a substantially central portion of the plate portion and having a rotation axis located in a fourth area of the main body when the strap is mounted to the main body, a grip portion provided on the rotation mechanism portion, and a folded portion provided on the plate portion, and located at a position of a third area of the main body so as to be substantially orthogonal to a longitudinal direction, and to be bent in a direction toward the surface of the portable terminal when the strap is mounted to the main body.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: October 6, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Eiji Saitoh, Shinji Tomobe
  • Publication number: 20200263736
    Abstract: In order to determine information about the generation of heat in a bearing (10) in a simple manner, a bearing (10) includes an outer ring (12) secured to a securing member, and an inner ring (11) provided on the inside of the outer ring (12) and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor (14) is provided as a coating on a securing-side surface that includes the outer ring (12), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.
    Type: Application
    Filed: August 3, 2018
    Publication date: August 20, 2020
    Applicants: NEC CORPORARATION, TOHOKU UNIVERSITY
    Inventors: Akihiro KIRIHARA, Masahilo ISHIDA, Koichi TERASHIMA, Ryohto SAWADA, Eiji SAITOH, Yasuyuki OIKAWA, Ryo IGUCHI, Masao ONO
  • Publication number: 20200196726
    Abstract: A strap used in a portable terminal includes a plate portion configured to be mounted on a surface of a main body of the portable terminal by attaching to a strap fixing portion of the main body, a rotation mechanism portion located at a substantially central portion of the plate portion and having a rotation axis located in a fourth area of the main body when the strap is mounted to the main body, a grip portion provided on the rotation mechanism portion, and a folded portion provided on the plate portion, and located at a position of a third area of the main body so as to be substantially orthogonal to a longitudinal direction, and to be bent in a direction toward the surface of the portable terminal when the strap is mounted to the main body.
    Type: Application
    Filed: October 21, 2019
    Publication date: June 25, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Eiji SAITOH, Shinji TOMOBE
  • Publication number: 20200037884
    Abstract: In order to enable the measurement of thermal property information about a subject, this thermal diffusion coefficient measuring device, which is used by contacting the surface of a living body, is provided with: a biological information sensor comprising a temperature sensor and a heat flux sensor; and a heating/cooling control means. The temperature sensor is provided at a position contacting the surface of the living body, and operates so as to detect skin temperature. The heat flux sensor is provided at a position contacting the surface of the living body, while being adjacent to the temperature sensor, and operates so as to detect heat flux on the surface of the living body. The heating/cooling control means enables the measurement of the temperature diffusion coefficient of a thermal resistance component that is present between the biological information sensor and a deep inner portion of the living body.
    Type: Application
    Filed: March 20, 2018
    Publication date: February 6, 2020
    Applicants: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Masahiko ISHIDA, Ryo IGUCHI, Yuki SHIOMI, Eiji SAITOH, Ryohto SAWADA, Akihiro KIRIHARA, Koichi TERASHIMA, Yasuyuki OIKAWA
  • Patent number: 10171122
    Abstract: A hand strap for an electronic apparatus is provided with a first gripper, which is attached to a rear surface of an electronic apparatus in a removable manner, and a second gripper. The first gripper has a main body and an accommodation portion. The second gripper includes a fixed portion and an extra-long portion, one end of which is a free end. The extra-long portion is accommodated inside the accommodation portion, and can adjust the entire length of the second gripper. A finger accommodation space in which a finger other than a thumb is disposed between the first gripper and the second gripper, is defined. By gripping the first gripper with the pad and the tip end of a finger other than a thumb, it is possible to perform operation with a thumb over a wide area of a touch panel while holding an electronic apparatus with one hand.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 1, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinji Tomobe, Eiji Saitoh, Masami Tatehana
  • Publication number: 20180241428
    Abstract: A hand strap for an electronic apparatus is provided with a first gripper, which is attached to a rear surface of an electronic apparatus in a removable manner, and a second gripper. The first gripper has a main body and an accommodation portion. The second gripper includes a fixed portion and an extra-long portion, one end of which is a free end. The extra-long portion is accommodated inside the accommodation portion, and can adjust the entire length of the second gripper. A finger accommodation space in which a finger other than a thumb is disposed between the first gripper and the second gripper, is defined. By gripping the first gripper with the pad and the tip end of a finger other than a thumb, it is possible to perform operation with a thumb over a wide area of a touch panel while holding an electronic apparatus with one hand.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Shinji TOMOBE, Eiji SAITOH, Masami TATEHANA
  • Patent number: 10018689
    Abstract: We describe a method of detecting a voltage from a spin-current, the spin-current comprising a current having a spin predominantly aligned in a spin direction, the method comprising: flowing the spin current through a layer of organic material in a vertical direction through the layer; and detecting an electric field in a lateral direction in the layer of organic material. In a preferred embodiment the organic layer is anisotropic and has a higher electrical conductivity in the lateral direction than in the vertical direction.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: July 10, 2018
    Assignees: CAMBRIDGE ENTERPRISE LIMITED, TOHOKU UNIVERSITY
    Inventors: Henning Sirringhaus, Kazuya Ando, Eiji Saitoh, Sebastian Mooser, Shun Watanabe
  • Patent number: 9991436
    Abstract: An object of the present invention is to provide a low-cost thermoelectric converter element having high productivity and excellent conversion efficiency. A thermoelectric converter element according to the present invention includes a substrate 4, a magnetic film 2 provided on the substrate 4 with a certain magnetization direction A and formed of a polycrystalline magnetically insulating material, and an electrode 3 provided on the magnetic film 2 with a material exhibiting a spin-orbit interaction. When a temperature gradient is applied to the magnetic film 2, a spin current is generated so as to flow from the magnetic film 2 toward the electrode 3. A current I is generated in a direction perpendicular to the magnetization direction A of the magnetic film 2 by the inverse spin Hall effect in the electrode 3.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: June 5, 2018
    Assignees: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Akihiro Kirihara, Yasunobu Nakamura, Shinichi Yorozu, Kenichi Uchida, Eiji Saitoh
  • Patent number: 9979428
    Abstract: A hand strap for an electronic apparatus is provided with a first gripper, which is attached to a rear surface of an electronic apparatus in a removable manner, and a second gripper. The first gripper has a main body and an accommodation portion. The second gripper includes a fixed portion and an extra-long portion, one end of which is a free end. The extra-long portion is accommodated inside the accommodation portion, and can adjust the entire length of the second gripper. A finger accommodation space in which a finger other than a thumb is disposed between the first gripper and the second gripper, is defined. By gripping the first gripper with the pad and the tip end of a finger other than a thumb, it is possible to perform operation with a thumb over a wide area of a touch panel while holding an electronic apparatus with one hand.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: May 22, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinji Tomobe, Eiji Saitoh, Masami Tatehana
  • Patent number: 9917241
    Abstract: A thermoelectric conversion apparatus includes a substrate, and a power generation part formed on the substrate for generating a thermoelectric power. The power generation part includes a magnetic layer with magnetization and an electrode layer including a material exhibiting a spin-orbit interaction and formed on the magnetic layer. The substrate and the power generation part have flexibility, respectively. The thermoelectric conversion apparatus further includes a cover layer having flexibility and formed on the substrate so as to cover at least the power generation part. The magnetic layer includes magnetic layer pieces separated in a layer direction with a gap portion interposed between the magnetic layer pieces.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 13, 2018
    Assignees: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Akihiro Kirihara, Hiroyuki Endoh, Takashi Manako, Kenichi Uchida, Eiji Saitoh
  • Publication number: 20170301847
    Abstract: A thermoelectric conversion apparatus includes a substrate, and a power generation part formed on the substrate for generating a thermoelectric power. The power generation part includes a magnetic layer with magnetization and an electrode layer including a material exhibiting a spin-orbit interaction and formed on the magnetic layer. The substrate and the power generation part have flexibility, respectively. The thermoelectric conversion apparatus further includes a cover layer having flexibility and formed on the substrate so as to cover at least the power generation part. The magnetic layer includes magnetic layer pieces separated in a layer direction with a gap portion interposed between the magnetic layer pieces.
    Type: Application
    Filed: November 14, 2016
    Publication date: October 19, 2017
    Inventors: Akihiro KIRIHARA, Hiroyuki Endoh, Takashi Manako, Kenichi Uchida, Eiji Saitoh
  • Publication number: 20170244438
    Abstract: A hand strap for an electronic apparatus is provided with a first gripper, which is attached to a rear surface of an electronic apparatus in a removable manner, and a second gripper. The first gripper has a main body and an accommodation portion. The second gripper includes a fixed portion and an extra-long portion, one end of which is a free end. The extra-long portion is accommodated inside the accommodation portion, and can adjust the entire length of the second gripper. A finger accommodation space in which a finger other than a thumb is disposed between the first gripper and the second gripper, is defined. By gripping the first gripper with the pad and the tip end of a finger other than a thumb, it is possible to perform operation with a thumb over a wide area of a touch panel while holding an electronic apparatus with one hand.
    Type: Application
    Filed: January 4, 2017
    Publication date: August 24, 2017
    Inventors: Shinji TOMOBE, Eiji SAITOH, Masami TATEHANA
  • Patent number: 9647193
    Abstract: [Object] To increase the degree of freedom in designing a system for taking out power from a temperature gradient in terms of a thermoelectric conversion element or a thermoelectric conversion device. [Means for Achieving Object] A thermal spin-wave spin current generating member made of a magneto-dielectric body is provided with an inverse spin Hall effect member, a temperature gradient is provided in the above-described thermal spin-wave spin current generating member in the direction of the thickness, and at the same time a magnetic field is applied to the above-described inverse spin Hall effect member in the direction perpendicular to the longitudinal direction and perpendicular to the direction of the above-described temperature gradient by means of a magnetic field applying means so that a thermal spin-wave spin current is converted to a voltage which is taken out in the above-described inverse spin Hall effect member.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 9, 2017
    Assignee: TOHOKU TECHNOARCH CO., LTD.
    Inventors: Eiji Saitoh, Ken-ichi Uchida
  • Publication number: 20170062691
    Abstract: A thermoelectric conversion apparatus includes a substrate, and a power generation part formed on the substrate for generating a thermoelectric power. The power generation part includes a magnetic layer with magnetization and an electrode layer including a material exhibiting a spin-orbit interaction and formed on the magnetic layer. The substrate and the power generation part have flexibility, respectively. The thermoelectric conversion apparatus further includes a cover layer having flexibility and formed on the substrate so as to cover at least the power generation part. The thermoelectric conversion apparatus further includes a cylindrical member having a cylindrical shape. The substrate, the power generation part, and the cover layer are arranged outside of the cylindrical member so that a magnetization direction of the magnetic layer of the power generation part is aligned with an axial direction of the cylindrical member.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Akihiro KIRIHARA, Hiroyuki Endoh, Takashi Manako, Kenichi Uchida, Eiji Saitoh
  • Patent number: 9496474
    Abstract: A thermoelectric conversion apparatus has a substrate and a power generation part. The power generation part has a magnetic layer with magnetization and an electrode layer made of a material exhibiting a spin-orbit interaction and formed on the magnetic layer. The substrate and the power generation part have flexibility. This thermoelectric conversion apparatus further has a cover layer having flexibility and formed on the substrate so as to cover at least the power generation part.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 15, 2016
    Assignees: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Akihiro Kirihara, Hiroyuki Endoh, Takashi Manako, Kenichi Uchida, Eiji Saitoh
  • Publication number: 20160284966
    Abstract: A magnetic element according to the present invention is formed of a layered product having a magnetic insulator film formed on a substrate including a material having no crystal structure. The magnetic insulator film has a columnar crystal structure.
    Type: Application
    Filed: June 13, 2016
    Publication date: September 29, 2016
    Applicants: NEC Corporation, Tohoku University
    Inventors: Akihiro KIRIHARA, Masahiko ISHIDA, Takashi MANAKO, Kenichi UCHIDA, Eiji SAITOH
  • Publication number: 20160169988
    Abstract: We describe a method of detecting a voltage from a spin-current, the spin-current comprising a current having a spin predominantly aligned in a spin direction, the method comprising: flowing the spin current through a layer of organic material in a vertical direction through the layer; and detecting an electric field in a lateral direction in the layer of organic material. In a preferred embodiment the organic layer is anisotropic and has a higher electrical conductivity in the lateral direction than in the vertical direction.
    Type: Application
    Filed: October 21, 2013
    Publication date: June 16, 2016
    Applicants: CAMPBRIDGE ENTERPRISE LIMITED, TOHOKKU UNIVERSITY
    Inventors: HENNING SIRRINGHAUS, KAZUYA ANDO, EIJI SAITOH, SEBASTIAN MOOER, SHUN WATANABE
  • Publication number: 20140230876
    Abstract: A magnetic element according to the present invention is formed of a layered product having a magnetic insulator film formed on a substrate including a material having no crystal structure. The magnetic insulator film has a columnar crystal structure.
    Type: Application
    Filed: July 10, 2012
    Publication date: August 21, 2014
    Applicants: TOHOKU UNIVERSITY, NEC CORPORATION
    Inventors: Akihiro Kirihara, Masahiko Ishida, Takashi Manako, Kenichi Uchida, Eiji Saitoh