Patents by Inventor Yoshihiro Iijima

Yoshihiro Iijima 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: 11946858
    Abstract: The purpose of the present invention is to allow a clean airflow around a substrate to reliably move downward of the substrate in an examination device in which clean air is supplied to an inspection chamber. This examination device is provided with a rectifying plate (see FIG. 4A) which covers a part of the upper surface of a stage for mounting a substrate, and is disposed between a gas supply unit and the stage to block an airflow toward the substrate.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: April 2, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yoshihiro Satou, Toshio Masuda, Hitoshi Matsuno, Kei Shibayama, Osamu Yoshimura, Yuichirou Iijima
  • Patent number: 9318989
    Abstract: Disclosed is a three-phase AC induction motor control device for controlling a torque based on a two-axis orthogonal coordinate system in synchronization with a power supply angular frequency, the control device including: a non-interference controller configured to receive a motor rotation speed, a torque command value, and a power supply voltage as an input and compute a torque axis non-interference compensation voltage and a magnetic flux axis non-interference compensation voltage by referencing a map stored in advance; and a non-interference magnetic flux response filter configured to perform filtering, including a direct transfer term and a rotor magnetic flux response delay, for the torque axis non-interference compensation voltage.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 19, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yoshihiro Iijima, Hideo Nakamura, Shiho Umeki, Kazuhiko Tazoe
  • Publication number: 20150048774
    Abstract: Disclosed is a three-phase AC induction motor control device for controlling a torque based on a two-axis orthogonal coordinate system in synchronization with a power supply angular frequency, the control device including: a non-interference controller configured to receive a motor rotation speed, a torque command value, and a power supply voltage as an input and compute a torque axis non-interference compensation voltage and a magnetic flux axis non-interference compensation voltage by referencing a map stored in advance; and a non-interference magnetic flux response filter configured to perform filtering, including a direct transfer term and a rotor magnetic flux response delay, for the torque axis non-interference compensation voltage.
    Type: Application
    Filed: March 11, 2013
    Publication date: February 19, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshihiro Iijima, Hideo Nakamura, Shiho Umeki, Kazuhiko Tazoe
  • Patent number: 8547192
    Abstract: In an electromagnetic actuator, an electromagnetic drive section forms a flux path between a plunger and an inner yoke, each member being made of magnetic material, and which drives the plunger in an axial direction through electromagnetic force, an operation section has a dog movable between a connection position where it is connected with a mating part and a release position where it is apart from the mating part in the axial direction, and which restrains movement of the mating part in a circumferential direction when the dog is at the connection position, and a retaining ring is interposed between the plunger and the dog such that relative movement of the dog to the plunger in the circumferential direction is permitted and relative movement of the dog to the plunger in the axial direction is restricted.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: October 1, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukihiko Ideshio, Yoshihiro Iijima, Hideaki Komada, Miyoshi Kawaguchi, Hidetoshi Aoki, Takaji Umeno
  • Patent number: 8424622
    Abstract: A hybrid drive unit includes a power distribution mechanism for distributing a power from an engine to a first electric motor and to an output shaft; a transmission, which is arranged between the output shaft and a second electric motor in a manner to transmit a torque therebetween, and which is capable of setting an overdrive ratio where a speed of the output shaft is higher than that of a predetermined input element; and an engagement mechanism for connecting the engine selectively with the input element of the transmission, and for setting a speed change ratio of the transmission to the overdrive ratio. The hybrid drive unit is capable of setting an overdrive mode and is easy to be downsized.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: April 23, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukihiko Ideshio, Hideaki Komada, Yoshihiro Iijima
  • Patent number: 8246499
    Abstract: A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the output shaft and to the first rotary electric machine; a second rotary electric machine fixing device that selectively fixes a rotor of the second rotary electric machine; and a transmission cutoff device capable of cutting off transmission of rotation between the output shaft and the second rotary electric machine at least in a state when the rotor of the second rotary electric machine is fixed.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: August 21, 2012
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Iwanaka, Shigeki Takami, Miyoshi Kawaguchi, Hideaki Komada, Yukihiko Ideshio, Takeshi Kitahata, Yoshihiro Iijima
  • Patent number: 8156803
    Abstract: A float-type oil-level detection apparatus is provided for detecting the surface of engine oil. A housing (81) for housing a float (82) has a through-hole (136) in the sidewall of the side opposite from the sidewall that faces the movement of the oil dipper (69).
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: April 17, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasunori Matsubara, Toshikazu Nakamura, Yoshihiro Iijima
  • Publication number: 20120000300
    Abstract: A body condition evaluation apparatus measures vicarious movement accompanying predetermined motion, and evaluates a physical condition of a body of a subject by using it as an index. A sensor unit 3L is mounted between a shoulder joint and a cubital joint of a left arm, a sensor unit 3R is mounted between a shoulder joint and a cubital joint of a right arm, a sensor unit 3C is mounted on a breast, and a sensor unit 3W is mounted on a navel. The respective sensors have a triaxial acceleration sensor 13. A movable range of the left arm is obtained on the basis of the sensor 3L, a movable range of the right arm is obtained on the basis of the sensor 3R, displacement widths of an upper body in a front-back direction and a right-left direction are obtained on the basis of the sensor 3C, and displacement widths of a lower back in a front-back direction and a right-left direction are obtained on the basis of the sensor 3W.
    Type: Application
    Filed: March 9, 2010
    Publication date: January 5, 2012
    Inventors: Yoshikazu Sunagawa, Hiromu Ueshima, Yoshihiro Iijima, Yuuki Konno
  • Publication number: 20110063058
    Abstract: In an electromagnetic actuator, an electromagnetic drive section forms a flux path between a plunger and an inner yoke, each member being made of magnetic material, and which drives the plunger in an axial direction through electromagnetic force, an operation section has a dog movable between a connection position where it is connected with a mating part and a release position where it is apart from the mating part in the axial direction, and which restrains movement of the mating part in a circumferential direction when the dog is at the connection position, and a retaining ring is interposed between the plunger and the dog such that relative movement of the dog to the plunger in the circumferential direction is permitted and relative movement of the dog to the plunger in the axial direction is restricted.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 17, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Yoshihiro Iijima, Hideaki Komada, Miyoshi Kawaguchi, Hidetoshi Aoki, Takaji Umeno
  • Publication number: 20100032218
    Abstract: A hybrid drive unit includes a power distribution mechanism for distributing a power from an engine to a first electric motor and to an output shaft; a transmission, which is arranged between the output shaft and a second electric motor in a manner to transmit a torque therebetween, and which is capable of setting an overdrive ratio where a speed of the output shaft is higher than that of a predetermined input element; and an engagement mechanism for connecting the engine selectively with the input element of the transmission, and for setting a speed change ratio of the transmission to the overdrive ratio. The hybrid drive unit is capable of setting an overdrive mode and is easy to be downsized.
    Type: Application
    Filed: December 17, 2007
    Publication date: February 11, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Hideaki Komada, Yoshihiro Iijima
  • Publication number: 20100024544
    Abstract: A float-type oil-level detection apparatus is provided for detecting the surface of engine oil. A housing (81) for housing a float (82) has a through-hole (136) in the sidewall of the side opposite from the sidewall that faces the movement of the oil dipper (69).
    Type: Application
    Filed: June 16, 2006
    Publication date: February 4, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yasunori Matsubara, Toshikazu Nakamura, Yoshihiro Iijima
  • Publication number: 20080207374
    Abstract: A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the output shaft and to the first rotary electric machine; a second rotary electric machine fixing device that selectively fixes a rotor of the second rotary electric machine; and a transmission cutoff device capable of cutting off transmission of rotation between the output shaft and the second rotary electric machine at least in a state when the rotor of the second rotary electric machine is fixed.
    Type: Application
    Filed: February 26, 2008
    Publication date: August 28, 2008
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Iwanaka, Shigeki Takami, Miyoshi Kawaguchi, Hideaki Komada, Yukihiko Ideshio, Takeshi Kitahata, Yoshihiro Iijima
  • Patent number: 7104381
    Abstract: A cylinder tube of a second hydraulic cylinder is provided separate from a first piston of a first hydraulic cylinder and integrally fixed to an input shaft. Friction members of a first clutch and friction members of a second clutch are prevented from moving in a first direction by a snap ring attached to a connecting drum. The friction members of the first clutch are friction engaged by the first piston and the friction members of the second clutch are friction engaged by a second piston.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: September 12, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Terufumi Miyazaki, Yoshihiro Iijima, Yuji Yasuda, Hirofumi Onishi, Naohiro Imamura
  • Patent number: 7098629
    Abstract: A generator apparatus can provide generated power fit for a connected battery, and even if a load voltage is not within a suitable range, when the load voltage is a certain level or more, the generator can provide power. A selector 25 selects a target voltage for controlling the output voltage of a rectifier 2. An output controller 34 controls the rectifier 2 according to the target. A load judgment section 35 judges the terminal voltage of a battery 19. When the terminal voltage is within an allowable range with respect to the target value, permission for output is given to the output controller 34. When the load voltage is not within the allowable range, an alarm is raised. Even when the alarm is raised, if a load voltage develops which is not less than a predetermined voltage lower than the allowable range, the battery 19 can be charged by forced-output.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: August 29, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Iijima, Katsumi Maruyama, Takahiro Ideguchi, Yoshinori Nakagawa, Toshio Inoue, Junichi Eguchi
  • Patent number: 7096815
    Abstract: An underwater scooter including a main frame on which are disposed two air tanks serving as a saddle area for the operator, a depth adjusting mechanism disposed to the fore of the air tanks, and a steering mechanism disposed to the aft of the air tanks. The depth adjusting mechanism can be swiveled freely around a vertical axis using a swivel mechanism, and moreover the angular displacement in this swiveling is transmitted by a swivel angle displacement transmission mechanism to the steering mechanism so that a rudder swivels around a vertical axis, and thus while the underwater scooter is traveling, the operator can ride upon the main frame and also adjust the depth of travel and direction of forward motion of the underwater scooter by manipulating the depth adjusting mechanism and steering mechanisms. Thus, the burden on the operator is reduced in comparison to that of the conventional types of scooters that tow the operator.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: August 29, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Keiji Iino, Hiroshi Sueshige, Masayuki Osumi, Yoshihiro Iijima, Hiroaki Hasebe
  • Patent number: D777681
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 31, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Tsutomu Okamoto, Yuki Ueno, Yoshihiro Iijima
  • Patent number: D778840
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 14, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Tsutomu Okamoto, Yuki Ueno, Yoshihiro Iijima
  • Patent number: D788042
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 30, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Tsutomu Okamoto, Yuki Ueno, Yoshihiro Iijima
  • Patent number: D795819
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: August 29, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Tsutomu Okamoto, Yuki Ueno, Yoshihiro Iijima
  • Patent number: D817286
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 8, 2018
    Assignee: ADAMANT CO., LTD.
    Inventors: Tsutomu Okamoto, Yuki Ueno, Yoshihiro Iijima