Patents by Inventor Isamu Matsushima

Isamu Matsushima 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: 7621198
    Abstract: A shift lever device for operation of a transmission of a vehicle having a plurality of shift ranges is provided which includes a lever main body, a housing that movably supports the lever main body, a light source provided at one of the housing and the lever main body; a knob mounted to a distal end portion of the lever main body, and having a transmitting portion, a light guiding portion provided at the knob and guiding light from the light source to the interior of the knob, and a light guiding control portion. The light guiding control portion includes a shutter member operatively connected to and movable with the lever main body which, when the lever main body is positioned at least at one specific shift position, does not block light from the light source to the knob transmitting portion, and which, when the lever main body is positioned at a position other than the specific shift position, is moved to a position blocking the light to the knob transmitting portion.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: November 24, 2009
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Kenichi Kako, Noriyasu Shamoto, Isamu Matsushima, Keizo Fukuda, Teruaki Kitano
  • Patent number: 7617746
    Abstract: A shift lever apparatus including a shift lever assembly, which is supported by a shaft that is disposed along the transverse direction of a vehicle, the lever assembly being operable in the longitudinal and the transverse directions of the vehicle, the apparatus including: a connection pin which is temporarily assembled when inserted along an axis thereof from one end of the shift lever assembly and the shaft into the lever assembly and the shaft, the connection pin becoming regularly assembled when rotated about the axis thereof from the temporarily assembled state, and which supports the lever assembly to be pivotable on the shaft in the transverse direction of the vehicle; and a fallout-preventing mechanism which is provided on the lever assembly to be engageable with the connection pin, and which prevents the connection pin from falling out from the lever assembly and the shaft by engaging the connection pin.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: November 17, 2009
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Isamu Matsushima, Kenichi Kako
  • Patent number: 7554412
    Abstract: A phase locked loop (PLL) circuit automatically corrects the offset of the analog (especially active type) loop filter to improve the stability and precision of the locked clock or frequency signals. In addition to the general PLL circuit configuration having active type loop filter (30), the PLL circuit also has a frequency comparing circuit (42), a DAC controller (44) and a DAC (digital-to-analog converter) (46). In an offset measurement mode, the outputs of phase error detecting circuit (12, 14) and frequency error detecting circuit (18, 20) are cut, respectively, to establish locking in offset measurement locked loop (42, 44, 45, 30, 40). In this case, offset correction code (EDs) are identified and held. In normal mode, DAC controller (44) has offset correction code (ED) input to DAC (46), and DAC (46) sends offset correction signal (EAs) to loop filter (30).
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: June 30, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Hiroaki Kojima, Isamu Matsushima
  • Patent number: 7472621
    Abstract: A shift device includes a housing, a shift lever, a sensor unit. The shift lever is moved forward and rearward, and leftward and rightward of the shift device for selecting the connection state of the transmission of a vehicle. The sensor unit is attached to the housing. The sensor unit includes a first MRE element, a second MRE element, a light sensor, a first microswitch, and a second microswitch, which are integrated. The first MRE element, the second MRE element, and the light sensor detect the position of the shift lever in the front-rear direction. The first and second microswitches detect the position of the shift lever in the left-right direction.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 6, 2009
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Noriyasu Syamoto, Isamu Matsushima, Noriyuki Suzuki
  • Publication number: 20060201272
    Abstract: A shift device includes a housing, a shift lever, a sensor unit. The shift lever is moved forward and rearward, and leftward and rightward of the shift device for selecting the connection state of the transmission of a vehicle. The sensor unit is attached to the housing. The sensor unit includes a first MRE element, a second MRE element, a light sensor, a first microswitch, and a second microswitch, which are integrated. The first MRE element, the second MRE element, and the light sensor detect the position of the shift lever in the front-rear direction. The first and second microswitches detect the position of the shift lever in the left-right direction.
    Type: Application
    Filed: April 26, 2006
    Publication date: September 14, 2006
    Applicant: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Noriyasu Syamoto, Isamu Matsushima, Noriyuki Suzuki
  • Patent number: 7086306
    Abstract: A shift device includes a housing, a shift lever, a sensor unit. The shift lever is moved forward and rearward, and leftward and rightward of the shift device for selecting the connection state of the transmission of a vehicle. The sensor unit is attached to the housing. The sensor unit includes a first MRE element, a second MRE element, a light sensor, a first microswitch, and a second microswitch, which are integrated. The first MRE element, the second MRE element, and the light sensor detect the position of the shift lever in the front-rear direction. The first and second microswitches detect the position of the shift lever in the left-right direction.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: August 8, 2006
    Assignee: Kabushiki, Kaisha, Tokai, Rika, Denki Seisakusho
    Inventors: Noriyasu Syamoto, Isamu Matsushima, Noriyuki Suzuki
  • Publication number: 20060114069
    Abstract: A phase locked loop (PLL) circuit automatically corrects the offset of the analog (especially active type) loop filter to improve the stability and precision of the locked clock or frequency signals. In addition to the general PLL circuit configuration having active type loop filter (30), the PLL circuit also has a frequency comparing circuit (42), a DAC controller (44) and a DAC (digital-to-analog converter) (46). In an offset measurement mode, the outputs of phase error detecting circuit (12, 14) and frequency error detecting circuit (18, 20) are cut, respectively, to establish locking in offset measurement locked loop (42, 44, 45, 30, 40). In this case, offset correction code (EDs) are identified and held. In normal mode, DAC controller (44) has offset correction code (ED) input to DAC (46), and DAC (46) sends offset correction signal (EAs) to loop filter (30).
    Type: Application
    Filed: August 22, 2005
    Publication date: June 1, 2006
    Inventors: Hiroaki Kojima, Isamu Matsushima
  • Publication number: 20050160860
    Abstract: A shift lever apparatus including a shift lever assembly, which is supported by a shaft that is disposed along the transverse direction of a vehicle, the lever assembly being operable in the longitudinal and the transverse directions of the vehicle, the apparatus including: a connection pin which is temporarily assembled when inserted along an axis thereof from one end of the shift lever assembly and the shaft into the lever assembly and the shaft, the connection pin becoming regularly assembled when rotated about the axis thereof from the temporarily assembled state, and which supports the lever assembly to be pivotable on the shaft in the transverse direction of the vehicle; and a fallout-preventing mechanism which is provided on the lever assembly to be engageable with the connection pin, and which prevents the connection pin from falling out from the lever assembly and the shaft by engaging the connection pin.
    Type: Application
    Filed: January 13, 2005
    Publication date: July 28, 2005
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Isamu Matsushima, Kenichi Kako
  • Publication number: 20050039562
    Abstract: A shift lever device in which a shift pattern, shift positions, and the like provided at a knob can be clearly seen without the knob being made to be large. Light is guided to an indicator lens by a light guide, without providing a lamp, which is a light source, at an interior of the knob. Thus, a structure of the knob can be simplified and the knob can be made to be compact. Further, because the light guide is a portion of the structure of the knob, the structure of the knob can be simplified from this standpoint as well.
    Type: Application
    Filed: August 11, 2004
    Publication date: February 24, 2005
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Kenichi Kako, Noriyasu Shamoto, Isamu Matsushima, Keizo Fukuda, Teruaki Kitano
  • Publication number: 20040237692
    Abstract: A shift device includes a housing, a shift lever, a sensor unit. The shift lever is moved forward and rearward, and leftward and rightward of the shift device for selecting the connection state of the transmission of a vehicle. The sensor unit is attached to the housing. The sensor unit includes a first MRE element, a second MRE element, a light sensor, a first microswitch, and a second microswitch, which are integrated. The first MRE element, the second MRE element, and the light sensor detect the position of the shift lever in the front-rear direction. The first and second microswitches detect the position of the shift lever in the left-right direction.
    Type: Application
    Filed: November 22, 2002
    Publication date: December 2, 2004
    Inventors: Noriyasu Syamoto, Isamu Matsushima, Noriyuki Suzuki
  • Patent number: 6659255
    Abstract: A shift lock device for a shift lever of a shift apparatus includes a fixed plate having a shift gate that allows movement of the shift lever to each of the shift positions. A movable plate faces the fixed plate and is movable in a direction intersecting a moving direction of shift lever. The movable plate has a corresponding gate that has an area greater than the area of the shift gate. A solenoid is connected to the movable plate to move the movable plate between a first position and a second position. The corresponding gate of the movable plate allows movement of the shift lever to any shift position at the first position and restricts movement of the shift lever in cooperation with the fixed plate at the second position.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: December 9, 2003
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Noriyasu Syamoto, Isamu Matsushima
  • Publication number: 20020166400
    Abstract: A shift lock device for a shift lever of a shift apparatus includes a fixed plate having a shift gate that allows movement of the shift lever to each of the shift positions. A movable plate faces the fixed plate and is movable in a direction intersecting a moving direction of shift lever. The movable plate has a corresponding gate that has an area greater than the area of the shift gate. A solenoid is connected to the movable plate to move the movable plate between a first position and a second position. The corresponding gate of the movable plate allows movement of the shift lever to any shift position at the first position and restricts movement of the shift lever in cooperation with the fixed plate at the second position.
    Type: Application
    Filed: March 18, 2002
    Publication date: November 14, 2002
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Noriyasu Syamoto, Isamu Matsushima