Patents by Inventor Yoshihiro Ito

Yoshihiro Ito 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: 10011270
    Abstract: An electric vehicle control apparatus includes a first motor generator, a booster, and a controller. The booster boosts an input voltage to the first motor generator. The controller controls the first motor generator to drive a load with regenerative power supplied during braking of an electric vehicle and to be driven at an inefficient operating point within an operable range of the first motor generator in a case where the regenerative power is used, the booster boosting an input voltage to the first motor generator so as to expand the operable range.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: July 3, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masanari Fukuchi, Ken Kitaori, Yoshihiro Ito, Satoshi Matsui
  • Patent number: 9962877
    Abstract: A molded article 1 is configured such that an insert 2 is made of a steel plate and includes a cylindrical part 2A and an annular part 2B, a plastic 4 is annular in shape so as to be joined to the annular part 2B, inner diameter D1 of the plastic 4 is larger than inner diameter D2 of the annular part 2B so that no burrs at a gate mark E protrude to the inner diameter side of the molded article 1, the injection molding is conducted with a disc gate arranged on an inner peripheral surface F of the plastic 4 at a position separated from a surface of the annular part 2B, and the gate mark E resides on the inner peripheral surface F of the plastic 4 at a position separated from the surface of the annular part 2B.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 8, 2018
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Yoshihiro Ito, Nobumasa Oka
  • Patent number: 9962876
    Abstract: A molded article 1 is configured such that an insert 2 is made of a steel plate and includes a cylindrical part 2A and an annular part 2B, a plastic 4 is annular in shape so as to be joined to the annular part 2B, inner diameter D1 of the plastic 4 is larger than inner diameter D2 of the annular part 2B so that no burrs at a gate mark E protrude to the inner diameter side of the molded article 1, the injection molding is conducted with a disc gate arranged on an inner peripheral surface F of the plastic 4 at a position separated from a surface of the annular part 2B, and the gate mark E resides on the inner peripheral surface F of the plastic 4 at a position separated from the surface of the annular part 2B.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 8, 2018
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Yoshihiro Ito, Nobumasa Oka
  • Patent number: 9958333
    Abstract: A sensor tag (10) includes a crystal vibrator (110) and an antenna (102). The antenna (102) is composed of a radiating conductor (121) and connection conductors (122). A crystal vibrator (110) is mounted on land conductors (120) provided at an end portion of the connection conductors (122) on the opposite side to the antenna (121). The antenna (102) is formed in a shape such that an amount of shift (?F) of a radiation frequency of the sensor tag (10) falls within an acceptable range in accordance with a resonant frequency (Fxs) and an equivalent inductance (Lxs) of the crystal vibrator (110) and a self-resonant frequency (Fant) and an equivalent inductance (Lant) of the antenna (102).
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 1, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshihiro Ito
  • Publication number: 20180115272
    Abstract: A vehicle includes an energy storage, a motor driver, an electric motor, and circuitry. The motor driver is configured to convert direct-current power to alternating-current power and to convert alternating-current power to direct-current power. The electric motor is connected to the energy storage via the motor driver to move the vehicle. The circuitry is configured to drive the electric motor with a first current value to consume excess electric power. The first current value is different from a minimum current value to generate regeneration power arising from a braking force. The circuitry is configured to drive the electric motor with a second current value smaller than the first current value if a temperature of the electric motor is higher than a first threshold temperature or a temperature of the motor driver is higher than a second threshold temperature.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Ken KITAORI, Masanari FUKUCHI, Yoshihiro ITO, Satoshi MATSUI
  • Publication number: 20180104810
    Abstract: A rotary power tool, such as an oil pulse driver, includes: a motor, a pinion rotated by the motor, planet gears that mesh with the pinion, an internal gear that meshes with the planet gears and a shaft that is rotationally driven by the planet gears and disposed frontward of the planet gears. The internal gear comprises an internal gear part and an internal gear retaining part for holding the internal gear part. An oil unit bearing is disposed frontward of the internal gear part, and the oil unit bearing is held at a front part of the internal gear retaining part.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 19, 2018
    Inventor: Yoshihiro ITO
  • Patent number: 9935471
    Abstract: A drive apparatus includes a first power storage, a second power storage, an electric motor, a voltage booster, an electric device. The second power storage is superior to the first power storage in energy to weight density and is inferior to the first power storage in output to weight density. The electric motor is to be driven with power supplied from at least one of the first power storage and the second power storage. The voltage booster is to boost a voltage output from the first power storage. The voltage booster includes a switch to electrically connect or disconnect the first power storage to at least one of the electric motor and the second power storage. The electric device is provided between the first power storage and the voltage booster. The voltage output from the second power storage is higher than a guaranteed operating voltage of the electric device.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 3, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Daijiro Takizawa, Yoshihiro Ito, Hirokazu Oguma, Masahiro Shimada
  • Publication number: 20180086133
    Abstract: A thermochromic writing instrument including a writing body, storing a thermochromic ink therein, stored in a barrel; an operation body provided in the barrel to be operated to longitudinally move the writing body; a nib of the writing body configured to be capable of appearing from a front end of the writing instrument, wherein the writing instrument 1 further includes a friction unit, for rubbing handwriting in the thermochromic ink and capable of thermally changing the color of the handwriting by frictional heat generated at that time, and at least one clip body as the operation body, the friction unit 10 is provided at a rear end of the barrel, and the clip body is provided in an area other than the rear end of the barrel.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 29, 2018
    Inventor: Yoshihiro Ito
  • Publication number: 20180086294
    Abstract: A power system includes: an internal combustion engine; a motor to perform power running; a generator to perform power generating operation and the power running; a power transmission mechanism via which the internal combustion engine, the motor, and the generator are connected to drive a driven load by at least one of the internal combustion engine, the motor, and the generator and to perform power transmission between the internal combustion engine and the generator; and a processor configured to perform a first control process to control the motor to perform the power running so that the driven load is driven only by the motor and to perform a second control process to control both the motor and the generator to perform the power running so that the driven load is driven by both of the motor and the generator.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 29, 2018
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro ITO, Yasuyuki SANDO
  • Publication number: 20180086330
    Abstract: A power system includes: an internal combustion engine; an electric motor; a power generator to drive a driven load; a power transmission mechanism via which power is transmitted from the internal combustion engine, the electric motor, and the power generator to the driven load and via which power is transmitted between the internal combustion engine and the power generator; a first power storage and a second power storage to store electric power; a power transmission circuit electrically connecting the electric motor, the power generator, the first power storage, and the second power storage so as to transmit electric power from the first power storage and the second power storage to the electric motor and the power generator; and a processor configured to control the power transmission circuit such that the first power storage and the second power storage feed electric power to the electric motor and the power generator.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 29, 2018
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Yoshihiro ITO
  • Publication number: 20180073020
    Abstract: The present invention relates to a single-chain circular RNA having a sustained or slow-releasing RNA interference effect, characterized in that the single-chain circular RNA comprises a sense strand sequence, an antisense strand sequence complementary to the sense strand sequence, identical or different two loop sequences between the sense strand and the antisense strand, connecting both strands, wherein the sense strand and the antisense strand are paired to form a stem.
    Type: Application
    Filed: August 21, 2017
    Publication date: March 15, 2018
    Applicants: Riken, OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Hiroshi Abe, Yoshihiro Ito, Naoko Abe, Hidekazu Toyobuku
  • Patent number: 9909928
    Abstract: A wireless thermometer is provided, which measures a deep temperature with high accuracy and has an improved communication distance. A wireless thermometer includes a flat film-like substrate. A quartz crystal vibrator and an antenna are disposed on a principal surface of the substrate. A quartz crystal vibrator and an antenna are disposed on the other principal surface of the substrate. A winding conductor of the antenna is substantially symmetrical with a winding conductor of the antenna with respect to the substrate. A lead conductor of the antenna is connected to the winding conductor at one end and is connected to the quartz crystal vibrator at the other end. A central portion of the lead conductor is bent. By folding the central portion, the quartz crystal vibrator can be positioned opposite the quartz crystal vibrator with a heat insulator interposed there between.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 6, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihiro Ito, Yuri Hoshino
  • Patent number: 9887663
    Abstract: A vehicle includes an electric motor to move the vehicle. A motor driver is configured to convert direct-current power supplied from a voltage converter to an alternating-current power and to convert the alternating-current power supplied from the electric motor to direct-current power. Circuitry is configured to drive the electric motor with a first current value to generate a drive force to consume excess electric power. The first current value is different from a minimum current value to generate the same drive force. The circuitry is configured to drive the electric motor with a second current value smaller than the first current value to decrease the electric power consumption of the electric motor when a temperature of the electric motor exceeds a first threshold temperature or a temperature of the motor driver exceeds a second threshold temperature.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 6, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Ken Kitaori, Masanari Fukuchi, Yoshihiro Ito, Satoshi Matsui
  • Patent number: 9878435
    Abstract: A rotary power tool, such as an oil pulse driver, includes: a motor, a pinion rotated by the motor, planet gears that mesh with the pinion, an internal gear that meshes with the planet gears and a shaft that is rotationally driven by the planet gears and disposed frontward of the planet gears. The internal gear comprises an internal gear part and an internal gear retaining part for holding the internal gear part. An oil unit bearing is disposed frontward of the internal gear part, and the oil unit bearing is held at a front part of the internal gear retaining part.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 30, 2018
    Assignee: MAKITA CORPORATION
    Inventor: Yoshihiro Ito
  • Patent number: 9844973
    Abstract: A thermochromic writing instrument, comprising: a writing body, storing a thermochromic ink therein, stored in a barrel; an operation body provided in the barrel to be operated to longitudinally move the writing body; a nib of the writing body configured to be capable of appearing from a front end of the writing instrument, wherein the writing instrument further includes a friction unit, rubbing handwriting in the thermochromic ink and capable of thermally changing the color of the handwriting by frictional heat generated at that time, and at least one clip body as the operation body, the friction unit is provided at a rear end of the barrel, and the clip body is provided in an area other than the rear end of the barrel.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: December 19, 2017
    Assignee: KABUSHIKI KAISHA PILOT CORPORATION
    Inventor: Yoshihiro Ito
  • Publication number: 20170357210
    Abstract: A driving-force transmission member includes a coupling portion that includes a driving-force transmission surface and that transmits a driving force to a cartridge coupling, a first helical gear portion that engages with a driven gear of a cartridge to transmit the driving force, and a second helical gear portion that engages with a drive gear to receive the driving force. The portions rotate integrally with each other when the driving-force transmission member rotates about the axis of rotation. The driving-force transmission surface is shaped with a twist in the same direction as the driving-force transmission member. Helical teeth of the first helical gear portion are shaped with a twist in the same direction as the driving-force transmission surface. Helical teeth of the second helical gear portion are shaped with a twist in a direction opposite to the twist direction of the helical teeth of the first helical gear portion.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 14, 2017
    Inventors: Yuichiro Inaba, Tetsuji Suzuki, Yoshihiro Ito, Ryuta Murakami
  • Publication number: 20170349378
    Abstract: A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Inventors: Takeo Kawanami, Yoshihiro Ito, Kenji Watanabe, Daigo Yamauchi, Fumiya Sawashima, Osamu Sasaoka, Yoichiro Iizuka, Hiromi Fujinaka, Takugo Kasaishi
  • Publication number: 20170304893
    Abstract: One aspect of the present invention is a lubricant to be incorporated into a powder metallurgical mixed powder containing an iron-based powder. The lubricant includes a flaky organic material having an average particle diameter of from 0.1 ?m to less than 3 ?m. Another aspect of the present invention is a powder metallurgical mixed powder which contains an iron-based powder and the lubricant. Yet another aspect of the present invention is a method for producing a sintered compact. The method includes the step of mixing materials to give a powder metallurgical mixed powder containing an iron-based powder and the lubricant. The powder metallurgical mixed powder is compacted using a die to give a powder compact. The powder compact is sintered to give a sintered compact.
    Type: Application
    Filed: December 1, 2015
    Publication date: October 26, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yoshihiro ITO, Eiichiro Yoshikawa, Nobuaki AKAGI, Yuji TANIGUCHI, Mitsuhiro SATO
  • Publication number: 20170306257
    Abstract: Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance and peeling resistance. This film is coated on a substrate surface, wherein the coating film has a hard carbon that presents relatively black and white when observed in a cross-sectional bright-field TEM image, a mesh-shaped hard carbon layer is formed using a PVD method, said layer having white-colored hard carbon in a mesh shape extending in the thickness direction and black-colored hard carbon dispersed into the cavities in the mesh, and the ID/IG ratio is 1-6 when the mesh-shaped hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
    Type: Application
    Filed: September 17, 2014
    Publication date: October 26, 2017
    Applicants: NIPPON ITF, INC., NIPPON PISTON RING CO., LTD.
    Inventors: Hideki MORIGUCHI, Tadashi SAITO, Yoshikazu TANAKA, Akinori SHIBATA, Tetsumi ARAHI, Katsuaki OGAWA, Takahiro OKAZAKI, Hiroyuki SUGIURA, Yoshihiro ITO
  • Publication number: 20170283935
    Abstract: Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance (defect resistance) and peeling resistance. This coating film coats a substrate surface, wherein a hard carbon layer is formed extending in columns-shape perpendicular to the substrate when observed in a cross-sectional bright-field TEM image, the hard carbon layer is formed using a PVD method, and the ID/IG ratio is 1-6 when the hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
    Type: Application
    Filed: September 17, 2014
    Publication date: October 5, 2017
    Applicants: NIPPON ITF, INC., NIPPON PISTON RING CO., LTD.
    Inventors: Hideki MORIGUCHI, Tadashi SAITO, Yoshikazu TANAKA, Tetsumi ARAHI, Katsuaki OGAWA, Takahiro OKAZAKI, Hiroyuki SUGIURA, Yoshihiro ITO