Patents by Inventor Yoshihiro Ichikawa

Yoshihiro Ichikawa 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: 6655227
    Abstract: A synchromesh-type transmission includes a shift and select shaft axially movable for carrying out a select operation and rotatable for carrying out a shift operation, a plurality of shift fork shafts each provided with a pair of shift heads, and an inner lever fixed to the shift and select shaft. The inner lever is disposed between the pair of shift heads according to the axial moving operation of the shift and select shaft and comes in contact with one of the shift heads according to the rotational moving operation of the shift and select shaft, wherein a shift stage is performed. The inner lever is located at a neutral position according to the rotational operation of the shift and select shaft for the shift operation, wherein no shift stage is performed.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 2, 2003
    Assignee: Aisin AI Co., Ltd.
    Inventors: Yoshiyuki Aoyama, Takeshige Miyazaki, Ryuji Choshi, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Patent number: 6631318
    Abstract: A transmission system, including a synchromesh-type transmission, includes an input shaft, a counter gear, an output shaft, an idle gear, a sleeve, a synchromesh mechanism for selecting a predetermined speed-change in response to a synchronizing operation of the sleeve and the idle gear, and a shift actuator for activating the sleeve depending on a shift operation. The transmission system further includes a detecting device for detecting a rotational number changing ratio of the input shaft when a synchronizing operation is performed in accordance with an engaging operation of the sleeve and the idle gear, a controlling device for controlling an operation of the shift actuator depending on an indication from the detecting device, and a converting device for converting an output indicating value to the shift actuator based on characteristics of the shift actuator.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: October 7, 2003
    Assignee: Aisin AI Co., Ltd.
    Inventors: Mitsutoshi Kamiya, Yoshiyuki Aoyama, Takeshige Miyazaki, Ryuji Choshi, Yoshihiro Ichikawa
  • Patent number: 6628577
    Abstract: A motor is provided on a slide base of a disc player. A flexible cable for supplying an electric power and control signals to the motor and a player and the like is connected to the motor at one end thereof, and to a player disposed in a chassis at the other end. When the slide base is located in a disc storing position, the flexible cable is bent ahead of the both ends, so that the wiring within the disc player can be simplified.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: September 30, 2003
    Assignee: Pioneer Corporation
    Inventors: Yoshihiro Ichikawa, Masayuki Saitoh, Shogo Sato, Yoshitake Shimada
  • Patent number: 6591704
    Abstract: A shift actuating control system for a synchromesh-type automatic transmission includes a shift actuator having a driving portion activated depending on a shift operation, a shift fork shaft moving a sleeve of a synchromesh mechanism in an axial direction when engaged with the shift fork, and a driving force transmitting member disposed between the driving portion and the shift fork shaft to transmit the driving force generated by the driving portion to the shift fork shaft. The shift actuating control system for the synchromesh-type automatic transmission further includes a detector which detects the deflection of the driving force transmitting member when the driving portion is activated, and a controller which controls the driving portion depending on the deflection detected by the first detector.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: July 15, 2003
    Assignee: Aisin Ai Co., Ltd.
    Inventors: Mitsutoshi Kamiya, Takeshige Miyazaki, Yoshiyuki Aoyama, Yoshihiro Ichikawa, Ryuji Choshi
  • Patent number: 6581488
    Abstract: A control device for a actuator applied in a transmission includes a maximum electric current value detecting device that detects a maximum electric current value supplied to the actuator. The maximum electric current value detecting device includes a determining unit, an electric current supplying unit, a detecting unit, and a setting unit. The determining unit determines a target electric current value supplied to the actuator, the electric current supplying unit supplies electric current to the actuator on the basis of the target electric current value determined by the determining unit, the detecting unit detects the maximum electric current value actually supplied to the actuator independently of the target electric current value determined by the determining unit, and the setting unit sets the maximum electric current value supplied to the actuator on the basis of the maximum electric current value detected by the detecting unit.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: June 24, 2003
    Assignee: Aisin AI Co., Ltd.
    Inventors: Takeshige Miyazaki, Ryuji Choshi, Yoshiyuki Aoyama, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Patent number: 6578442
    Abstract: A gear shifting control device for varying a gear ratio of a synchromesh transmission which controls an actuator to agree with an actual value of sleeve load in an axial direction with a required value with higher accuracy at a synchronizer of the transmission. A continuously varying driving signal with time is supplied to the actuator when necessary to change the actual value of the sleeve load to the required value different from the current value. A reaching time of the driving signal reaching the value corresponding to the required value to the actuator is determined based on an initial speed which is a speed of the sleeve at start of supplying the driving signal and a vibration cycle when the sleeve load is vibrated in response to the supply of a step signal to the actuator.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: June 17, 2003
    Assignee: Aisin AI Co., Ltd.
    Inventors: Yoshiyuki Aoyama, Mitsutoshi Kamiya, Takeshige Miyazaki, Ryuji Choshi, Yoshihiro Ichikawa
  • Patent number: 6571560
    Abstract: A ceramic member support structure for a gas turbine supports ceramic members so that the ceramic members may not be easily damaged and damage to one of the ceramic members may not affect the rest of the ceramic members easily. Ceramic members (26, 27) of a gas turbine with which a combustion gas comes into contact are supported on housings (14, 14A) by metallic support members (28, 29, 41). The ceramic members (26, 27) are connected to the support members (29, 41) by elastic members (32, 42) so as to be movable relative to the support members (29, 41). The difference in thermal expansion between the ceramic members (26, 27) and the metallic support members (28, 29, 41) is absorbed by the elastic members (32, 42) and hence the ceramic members (26, 27) are not damaged easily. Since the ceramic members (26, 27) are supported by the metallic support members (28, 29, 41), damage to one of the ceramic members does not influence easily on the other ceramic member.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: June 3, 2003
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Tetsuo Tatsumi, Yoshihiro Ichikawa
  • Patent number: 6561051
    Abstract: A gear shifting control device for synchromesh transmission judges whether a gear clash is generated during gear shifting based on gear shifting progress information. If gear clashes occur more frequently than a reference value during a particular shifting mode, then the control device may thereafter skip that shifting mode, if certain conditions are met. The vehicle operator is warned of this event.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: May 13, 2003
    Assignee: Aisin Ai Co., Ltd.
    Inventors: Takeshige Miyazaki, Ryuji Choshi, Yoshiyuki Aoyama, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Patent number: 6549491
    Abstract: A linear rack gear is formed on the underside of a slide base, and a planetary gear provided in a chassis, which rotates in engagement with this linear rack gear, causes the slide base to move back and forth. When the slide base is located in its disc store position, the planetary gear engages with a first arcuate rack gear formed in the chassis continuously with the linear rack gear and revolves in accordance therewith, whereupon a clamp causes a clamp cam to slide in a lateral direction to move a float base up and down, thereby achieving clamp and release of a disc, so that the disc player can be manufactured at low cost due to a reduced number of parts in excellent production efficiency.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: April 15, 2003
    Assignee: Pioneer Corporation
    Inventors: Yoshihiro Ichikawa, Masayuki Saitoh, Shogo Sato, Yoshitake Shimada
  • Patent number: 6522615
    Abstract: A disk player has a disk cartridge for being loaded thereon, and accommodating a disk-type recording medium. The disk cartridge has a shutter arranged thereon, for performing slide-opening/closing in order to expose an information surface of the disk-type recording medium. The disk player includes a carrier mechanism for carrying the disk cartridge to an information regenerating location and an information recording location, and a shutter sliding mechanism for slide-opening/closing the shutter. The shutter assumes an intermediate position of sliding when the disk cartridge is located at one of the information regenerating location and. the information recording location, and assumes a terminal position of sliding when the shutter is located at the other one of the locations. The disk player also includes a driving mechanism including an engaging element and an engaged element which is separated from the engaging element when the information recording mechanism is not driven.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: February 18, 2003
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshihiro Seshime, Yuji Ikedo, Masashi Kurosawa, Masamitsu Ohkawara, Yoshihiro Ichikawa, Yuji Morita
  • Patent number: 6445664
    Abstract: A disk player has a structure capable of mounting on a turntable a disc-shaped recording medium contained within a cartridge. Such disc player comprises a cartridge transporting system capable of transporting the cartridge in a direction generally parallel to a sliding direction of a shutter of the cartridge; and a pivotable chassis on which the turntable is mounted, said chassis being pivotable by a chassis driving system so as to enable said disc-shaped recording medium to be mounted on the turntable, with its pivoting axis being generally parallel to a transporting direction for transporting the cartridge.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: September 3, 2002
    Assignee: Pioneer Electronic Corporation
    Inventors: Masamitsu Ohkawara, Yoshihiro Ichikawa, Yuji Morita, Yoshihiro Seshime, Masashi Kurosawa
  • Patent number: 6385155
    Abstract: A positioning system is provided for use in an information recording/reproducing apparatus for positioning a cartridge containing an information recording medium on a chassis mounting information recording and reproducing structure. Such positioning system comprises positioning holes formed on the cartridge containing an information recording medium; and positioning pins formed on the chassis mounting information recording and reading structure. In particular, when a cartridge containing an information recording medium is inserted into the recording/reproducing apparatus, one of the positioning pins is caused to insert into a corresponding positioning hole earlier than the insertion of other pin(s) into other corresponding positioning hole(s).
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: May 7, 2002
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshihiro Ichikawa, Masamitsu Ohkawara
  • Publication number: 20020050182
    Abstract: A synchromesh-type transmission includes a shift and select shaft axially movable for carrying out a select operation and rotatable for carrying out a shift operation, a plurality of shift fork shafts each provided with a pair of shift heads, and an inner lever fixed to the shift and select shaft. The inner lever is disposed between the pair of shift heads according to the axial moving operation of the shift and select shaft and comes in contact with one of the shift heads according to the rotational moving operation of the shift and select shaft, wherein a shift stage is performed. The inner lever is located at a neutral position according to the rotational operation of the shift and select shaft for the shift operation, wherein no shift stage is performed.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 2, 2002
    Inventors: Yoshiyuki Aoyama, Takeshige Miyazaki, Ryuji Choshi, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Publication number: 20020049228
    Abstract: 2-Sulfamoylbenzoic acid derivatives of general formula (I): 1
    Type: Application
    Filed: April 27, 2001
    Publication date: April 25, 2002
    Applicant: Kaken Pharmaceuticals
    Inventors: Yoshihiro Ichikawa, Tokiko Nishida, Jun Nakano, Mitsuru Watanuki, Masahiro Suda, Tsutomu Nakamura
  • Patent number: 6376671
    Abstract: 2-Sulfamoylbenzoic acid derivatives of general formula (I): which have both an antagonistic effect on the leukotriene D4 receptor and an antagonistic effect on the thromboxane A2 receptor and salts thereof, pharmaceuticals, anti-allergic agents and leukotriene-thromboxane A2 antagonistic agents containing them as an active ingredient.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 23, 2002
    Assignee: Kaken Pharmaceutical Co., Ltd.
    Inventors: Yoshihiro Ichikawa, Tokiko Nishida, Jun Nakano, Mitsuru Watanuki, Masahiro Suda, Tsutomu Nakamura
  • Publication number: 20020043119
    Abstract: In a shifting device which changes the gear ratio of a synchromesh-type transmission by using an electrically operated or controlled actuator, the actuator is controlled to stabilize or equalize the time durations required for effecting respective synchronizations. A driving signal for each of the synchronization controls is decided in accordance with a relationship between the driving signal to be applied to the actuator and a relative rotation number between an idle gear and a sleeve when the synchronization control is initiated. Prior to each synchronization control, the above relation is corrected based on four variables obtained at the latest synchronization control, including (i) an input rotation number deviation summation &Sgr;&Dgr;Nin, (ii) a synchronization time duration deviation &Dgr;TSYN, (iii) an elapse-time input rotation number deviation &Dgr;dNinP, and (iv) a change grade deviation &Dgr;dNin.
    Type: Application
    Filed: October 12, 2001
    Publication date: April 18, 2002
    Inventors: Takeshige Miyazaki, Ryuji Choshi, Yoshiyuki Aoyama, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Publication number: 20020040267
    Abstract: A transmission system, including a synchromesh-type transmission, includes an input shaft, a counter gear, an output shaft, an idle gear, a sleeve, a synchromesh mechanism for selecting a predetermined speed-change in response to a synchronizing operation of the sleeve and the idle gear, and a shift actuator for activating the sleeve depending on a shift operation. The transmission system further includes a detecting device for detecting a rotational number changing ratio of the input shaft when a synchronizing operation is performed in accordance with an engaging operation of the sleeve and the idle gear, a controlling device for controlling an operation of the shift actuator depending on an indication from the detecting device, and a converting device for converting an output indicating value to the shift actuator based on characteristics of the shift actuator.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 4, 2002
    Inventors: Mitsutoshi Kamiya, Yoshiyuki Aoyama, Takeshige Miyazaki, Ryuji Choshi, Yoshihiro Ichikawa
  • Publication number: 20020038574
    Abstract: A shift actuating control system for a synchromesh-type automatic transmission includes a shift actuator having a driving portion activated depending on a shift operation, a shift fork shaft moving a sleeve of a synchromesh mechanism in an axial direction when engaged with the shift fork, and a driving force transmitting member disposed between the driving portion and the shift fork shaft to transmit the driving force generated by the driving portion to the shift fork shaft. The shift actuating control system for the synchromesh-type automatic transmission further includes a detector which detects the deflection of the driving force transmitting member when the driving portion is activated, and a controller which controls the driving portion depending on the deflection detected by the first detector.
    Type: Application
    Filed: October 2, 2001
    Publication date: April 4, 2002
    Inventors: Mitsutoshi Kamiya, Takeshige Miyazaki, Yoshiyuki Aoyama, Yoshihiro Ichikawa, Ryuji Choshi
  • Publication number: 20020023510
    Abstract: A control device for a actuator applied in a transmission includes a maximum electric current value detecting device that detects a maximum electric current value supplied to the actuator. The maximum electric current value detecting device includes a determining unit, an electric current supplying unit, a detecting unit, and a setting unit. The determining unit determines a target electric current value supplied to the actuator, the electric current supplying unit supplies electric current to the actuator on the basis of the target electric current value determined by the determining unit, the detecting unit detects the maximum electric current value actually supplied to the actuator independently of the target electric current value determined by the determining unit, and the setting unit sets the maximum electric current value supplied to the actuator on the basis of the maximum electric current value detected by the detecting unit.
    Type: Application
    Filed: August 31, 2001
    Publication date: February 28, 2002
    Inventors: Takeshige Miyazaki, Ryuji Choshi, Yoshiyuki Aoyama, Mitsutoshi Kamiya, Yoshihiro Ichikawa
  • Publication number: 20020024912
    Abstract: A positioning system is provided for use in an information recording/reproducing apparatus for positioning a cartridge containing an information recording medium on a chassis mounting information recording and reproducing means. Such Positioning system comprises a plurality of positioning holes formed on the cartridge containing an information recording medium; and a plurality of positioning pins formed on the chassis mounting information recording and reading means. In particular, when a cartridge containing an information recording medium is inserted into the recording/reproducing apparatus, one of the positioning pins is caused to insert into a corresponding positioning hole earlier than the insertion of other pin(s) into other corresponding positioning hole(s).
    Type: Application
    Filed: March 15, 1999
    Publication date: February 28, 2002
    Inventors: YOSHIHIRO ICHIKAWA, MASAMITSU OHKAWARA