Patents by Inventor Yukihiko Fukushima

Yukihiko Fukushima 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: 6655232
    Abstract: A hydraulic controller comprises a first hydraulic control valve 60, which is mounted on an end face S1 of a first housing unit H1, an oil pump 50, which is mounted on the first hydraulic control valve 60, and an input shaft 1 of a transmission, which shaft is provided rotatably in a transmission housing. The oil pump 50 comprises an outer rotor 52 and an inner rotor 53 in a pump casing 51 and 54, which is mounted on the valve body of the first hydraulic control valve 60. The input shaft 1, which is inserted into the pump casing and fit into the inner rotor 53, rotates and drives the inner rotor. The oil pump 50 sucks oil from the bottom of the transmission housing and supplies it through the mounted part into the first hydraulic control valve 60.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 2, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Atsushi Fujikawa, Shuji Ichijo, Yukihiko Fukushima, Makoto Sumi, Mitsuro Ohtaki, Katsuyuki Narai, Takashi Hasegawa, Shuichi Fujimoto
  • Publication number: 20020170383
    Abstract: A hydraulic controller comprises a first hydraulic control valve 60, which is mounted on an end face S1 of a first housing unit H1, an oil pump 50, which is mounted on the first hydraulic control valve 60, and an input shaft 1 of a transmission, which shaft is provided rotatably in a transmission housing. The oil pump 50 comprises an outer rotor 52 and an inner rotor 53 in a pump casing 51 and 54, which is mounted on the valve body of the first hydraulic control valve 60. The input shaft 1, which is inserted into the pump casing and fit into the inner rotor 53, rotates and drives the inner rotor. The oil pump 50 sucks oil from the bottom of the transmission housing and supplies it through the mounted part into the first hydraulic control valve 60.
    Type: Application
    Filed: April 19, 2002
    Publication date: November 21, 2002
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Atsushi Fujikawa, Shuji Ichijo, Yukihiko Fukushima, Makoto Sumi, Mitsuro Ohtaki, Katsuyuki Narai, Takashi Hasegawa, Shuichi Fujimoto
  • Patent number: 6338695
    Abstract: After the engine rotational speed Ne has become below a reference rotaional speed Neo, which is lower than an idling rotational speed of the engine, and after the pressure PL of oil passages 103a and 103b has begun to decrease, for a predetermined time, the currents supplied to electromagnetic valves 45 and 46 are adjusted to generate, in each electromagnetic valve, a second biasing force electromagnetically in a magnitude that can supplement a decrease in a third biasing force which is generated by the back pressure led through an oil passage 107 and 108, respectively, and which decreases as the pressure of the oil passages 103a and 103b decreases. After the above metioned predetermined time has elapsed, the currents supplied to the eletromagnetic valves 45 and 46 are set almost to zero.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: January 15, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akihira Aoki, Yukihiko Fukushima