Patents by Inventor Akihiro Miyoshi

Akihiro Miyoshi 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: 9579982
    Abstract: A resonant motor system having a resonant circuit that includes magnetic coils and of capacitors, for generating an electric power when the resonant lot is rotated by an engine, a regenerating portion for the resonant motor, a motor driving portion, a motor control portion, and a capacitor portion for storing therein the electric power generated by the resonant motor when the resonant motor is regenerated, the resonant rotor being driven by the electric power stored in the capacitor portion when the engine is assisted by the resonant motor.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: February 28, 2017
    Assignee: TBK CO., LTD.
    Inventors: Yukihiro Kato, Akihiro Miyoshi, Mitsuyoshi Oba
  • Publication number: 20160254738
    Abstract: A self-charging type electromagnetic retarder including a main portion having a stator yoke, a plurality of magnetic coils forming multi-phase connections, and a steel rotor, a control device, an electromagnetic retarder having a high revolution region, capacitor portion for storing excess electric power, a diode, and a low revolution region. The magnetic coils of each phase are connected with capacitors to form a resonance circuit. Transistors for the high revolution region are connected in series to each of the multi-phase connections. Transistors for the low revolution region are connected in series to each of the multi-phase connections through the capacitor portion and the diode. At the high revolution region, excess electric power obtained from the electric power generating type electromagnetic retarder portion is stored in the capacitor portion, and at the low revolution region, the magnetic coils are excited by the electric power stored in the capacitor portion.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 1, 2016
    Inventors: Yukihiro Kato, Akihiro Miyoshi, Mitsuyoshi Oba
  • Publication number: 20160137071
    Abstract: A resonant motor system having a resonant circuit that includes magnetic coils and of capacitors, for generating an electric power when the resonant lot is rotated by an engine, a regenerating portion for the resonant motor, a motor driving portion, a motor control portion, and a capacitor portion for storing therein the electric power generated by the resonant motor when the resonant motor is regenerated, the resonant rotor being driven by the electric power stored in the capacitor portion when the engine is assisted by the resonant motor.
    Type: Application
    Filed: April 16, 2014
    Publication date: May 19, 2016
    Inventors: Yukihiro KATO, Akihiro MIYOSHI, Mitsuyoshi OBA
  • Publication number: 20160064135
    Abstract: An electromagnetic coil for a retarder. A lead wire draw out portion includes a holder having a bottom portion through which a lead wire of the electromagnetic coil is passed and a reservoir to be filled with an adhesive.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Akihiro MIYOSHI, Junya KANEKO, Takurou ISHIKAWA, Mitsuyoshi OBA
  • Publication number: 20150333665
    Abstract: An electromagnetic retarder includes a stator yoke, a plurality of magnetic coils, and a steel rotor; a control device; a driving device for a high revolution region having transistors; and a driving device for a low revolution region having a battery, a diode for inhibiting reverse current, and transistors. The magnetic coils of each phase are coupled with capacitors so as to form a resonance circuit. Each of the transistors for the high revolution region is coupled in series to each of the multi-phase connections. Each of the transistors for the low revolution region is connected in series to each of the multi-phase connections through the battery and the diode. At the high revolution region, the magnetic coils are excited by an electric power obtained from a braking energy, and at the low revolution region, the magnetic coils are excited by an electric power obtained from the battery.
    Type: Application
    Filed: March 3, 2014
    Publication date: November 19, 2015
    Inventors: Yukihiro KATO, Akihiro MIYOSHI, Mitsuyoshi OBA
  • Publication number: 20150129376
    Abstract: An electromagnetic type retarder includes a stator having spaced, circularly arranged magnetic coils forming multi-phase connections and a steel rotor surrounding the stator and rotated according to the rotation of a tire; a control device; and a driving device including at least two transistors opened and closed by a drive pulse from the control device, respectively. The multi phase connections are formed by the magnetic coils, the magnetic coils of each phase are connected with capacitors to form a resonance circuit, respectively, and each of the transistors is connected in series to at least two phase connections. The revolution speed of a rotary magnetic field induced in he magnetic coils by the rotation of the steel rotor is set smaller than the revolution speed of the steel rotor. A braking torque is controlled by turning ON and OFF the transistor inserted in one phase connection.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Inventors: Mitsuyoshi Oba, Akihiro Miyoshi, Koichiro Nishimura
  • Patent number: 8689950
    Abstract: An electromagnetic type retarder comprises a main portion consisting of a stator having a plurality of magnetic coils arranged along a circle and spaced apart from one another, and of a steel rotor surrounding the stator and rotated according to the rotation of a tire; a driving device for the main portion to be controlled by an operation signal; and an output terminal for an additional device; the magnetic coils consisting of three-phase or two-phase connections. Each of the magnetic coils is connected with a capacitor so as to form a resonance circuit, respectively. The driving device has transistors connected in series to each of the connections and controlled so as to be opened and closed by the operation signal. The revolution speed of a rotary magnetic field generated by AC voltage induced in the magnetic coils forming the resonance circuits by the rotation of the steel rotor is set smaller than the revolution speed of the steel rotor.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: April 8, 2014
    Assignee: TBK Co., Ltd.
    Inventors: Yuichi Tashiro, Mitsuyoshi Oba, Akihiro Miyoshi
  • Patent number: 8534558
    Abstract: In an optical information reader, an entire size is reduced while a space for accommodating an imaging unit, a space for accommodating a cable of an external interface, and a space for accommodating plural boards in which circuits of a signal processing unit are accommodated are secured. An entire size of a housing is determined based on sizes of a main board and an imaging unit to realize an optical information reader having a minimum shape. The main board has the largest area as a board, and a CPU and a memory are mounted thereon. The imaging unit includes a camera module, a lighting LED unit, and a marker. The main board is disposed near an internal wall of a housing. Other functions are functionally divided into sub-boards and disposed around a frame body, and a connection portion to the cable is accommodated in the frame body to achieve miniaturization.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: September 17, 2013
    Assignee: Keyence Corporation
    Inventors: Akihiro Miyoshi, Minoru Taneda, Yusuke Otsubo
  • Patent number: 8062459
    Abstract: A velocity-changing apparatus of the present invention includes: a drum 3 for transporting the continuous web W1 at a transport velocity which is generally equal to a circumferential velocity V(?) of the drum 3 while changing the circumferential velocity V(?) periodically at least once per one rotation of the drum 3; a movable member 2 disposed upstream of the drum 3 for feeding the continuous web W1 to the drum 3,; and a cutter 4 for cutting, on the drum 3, the continuous web W1 being transported at the transport velocity which is generally equal to the circumferential velocity V(?) of the drum 3. The movable member 2 moves according to the change of the circumferential velocity V(?) of the drum 3 so that a feed velocity at which the continuous web W1 is fed to the drum 3 is generally equal to the transport velocity of the continuous web W1 being transported by the drum 3.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: November 22, 2011
    Assignee: Zuiko Corporation
    Inventors: Masaki Nakakado, Akihiro Miyoshi
  • Publication number: 20110214954
    Abstract: An electromagnetic type retarder comprises a main portion consisting of a stator having a plurality of magnetic coils arranged along a circle and spaced apart from one another, and of a steel rotor surrounding the stator and rotated according to the rotation of a tire; a driving device for the main portion to be controlled by an operation signal; and an output terminal for an additional device; the magnetic coils consisting of three-phase or two-phase connections. Each of the magnetic coils is connected with a capacitor so as to form a resonance circuit, respectively. The driving device has transistors connected in series to each of the connections and controlled so as to be opened and closed by the operation signal. The revolution speed of a rotary magnetic field generated by AC voltage induced in the magnetic coils forming the resonance circuits by the rotation of the steel rotor is set smaller than the revolution speed of the steel rotor.
    Type: Application
    Filed: February 18, 2011
    Publication date: September 8, 2011
    Inventors: Yuichi Tashiro, Mitsuyoshi Oba, Akihiro Miyoshi
  • Publication number: 20110068174
    Abstract: In an optical information reader, an entire size is reduced while a space for accommodating an imaging unit, a space for accommodating a cable of an external interface, and a space for accommodating plural boards in which circuits of a signal processing unit are accommodated are secured. An entire size of a housing is determined based on sizes of a main board and an imaging unit to realize an optical information reader having a minimum shape. The main board has the largest area as a board, and a CPU and a memory are mounted thereon. The imaging unit includes a camera module, a lighting LED unit, and a marker. The main board is disposed near an internal wall of a housing. Other functions are functionally divided into sub-boards and disposed around a frame body, and a connection portion to the cable is accommodated in the frame body to achieve miniaturization.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 24, 2011
    Applicant: KEYENCE CORPORATION
    Inventors: Akihiro Miyoshi, Minoru Taneda, Yusuke Otsubo
  • Publication number: 20100282812
    Abstract: A velocity-changing apparatus of the present invention includes: a drum 3 for transporting the continuous web W1 at a transport velocity which is generally equal to a circumferential velocity V(?) of the drum 3 while changing the circumferential velocity V(?) periodically at least once per one rotation of the drum 3; a movable member 2 disposed upstream of the drum 3 for feeding the continuous web W1 to the drum 3,; and a cutter 4 for cutting, on the drum 3, the continuous web W1 being transported at the transport velocity which is generally equal to the circumferential velocity V(?) of the drum 3. The movable member 2 moves according to the change of the circumferential velocity V(?) of the drum 3 so that a feed velocity at which the continuous web W1 is fed to the drum 3 is generally equal to the transport velocity of the continuous web W1 being transported by the drum 3.
    Type: Application
    Filed: June 1, 2010
    Publication date: November 11, 2010
    Inventors: Masaki NAKAKADO, Akihiro Miyoshi
  • Patent number: 7707876
    Abstract: A method for estimating the magnitude of a tire force acting on a rolling tire is disclosed, wherein: using at least seven sensors mounted on a tire sidewall portion, surface strain is simultaneously measured at seven measuring positions; with respect to a combination of the seven measuring positions, a coefficient matrix representing correlation with seven force components is defined, and a equation including the coefficient matrix is defined; using the data on the surface strain measured with the sensors, the equation is computed to find at least one of the seven force components, e.g. air pressure. The estimated air pressure is compared with a reference pressure, to determine whether the tire pressure is dropped or not. Further, a secondary sensor is mounted in a peculiar region where the surface strain is substantially not affected by the vertical load.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: May 4, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Akihiro Miyoshi
  • Patent number: 7668669
    Abstract: A method for estimating the magnitude of a back-and-forth-direction force exerted on a tire comprises: using a plurality of strain sensors fixed to a tire sidewall capable of outputting data on the magnitude of a strain occurred at the position of the strain sensor; reading the output data from the strain sensors when come to fixed measuring positions predetermined around the tire rotational axis; in relation to each of the strain sensors at the respective measuring positions, calculating the back-and-forth-direction force as an intermediate result by the use of the data read from the strain sensor and a relational expression, whereby the intermediate results are obtained from the respective strain sensors; and computing a mean value of only the valid intermediate result(s) so as to output it as the estimated magnitude of the force.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: February 23, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Akihiro Miyoshi
  • Patent number: 7513144
    Abstract: A pneumatic tire comprises a tread portion, a pair of bead portions and a pair of sidewall portions, and at least one of the sidewall portions is provided with at least three strain sensors disposed at least three circumferentially different mounting positions, respectively. The at least three strain sensors are oriented at angles ? with respect to tire radial directions at the respective mounting positions. The orientation angles ? of at least two of the at least three strain sensors are different from one another and their difference(s) is(are) not less than 20 degrees in absolute value.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: April 7, 2009
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Akihiro Miyoshi
  • Patent number: 7506539
    Abstract: A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a tire strain at the mounted position, and generating data representing tire strain; a sensor locator for locating the sensor on the tire; a memory in which data on the relationship between the tire strain and force acting on the tire at each of measuring points are stored; and a processor computing the magnitude of the force, using the data representing tire strain obtained from the tire strain sensor and the data on the relationship acquired from the memory based on the data on the sensor location obtained from the sensor locator.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 24, 2009
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Akihiro Miyoshi, Tamio Tsurita, Miwa Kunii
  • Publication number: 20080300801
    Abstract: A method for estimating the magnitude of a back-and-forth-direction force exerted on a tire comprises: using a plurality of strain sensors fixed to a tire sidewall capable of outputting data on the magnitude of a strain occurred at the position of the strain sensor; reading the output data from the strain sensors when come to fixed measuring positions predetermined around the tire rotational axis; in relation to each of the strain sensors at the respective measuring positions, calculating the back-and-forth-direction force as an intermediate result by the use of the data read from the strain sensor and a relational expression, whereby the intermediate results are obtained from the respective strain sensors; and computing a mean value of only the valid intermediate result(s) so as to output it as the estimated magnitude of the force.
    Type: Application
    Filed: March 18, 2008
    Publication date: December 4, 2008
    Inventor: Akihiro Miyoshi
  • Publication number: 20080245459
    Abstract: A method for estimating the magnitude of a tire force acting on a rolling tire is disclosed, wherein: using at least seven sensors mounted on a tire sidewall portion, surface strain is simultaneously measured at seven measuring positions; with respect to a combination of the seven measuring positions, a coefficient matrix representing correlation with seven force components is defined, and a equation including the coefficient matrix is defined; using the data on the surface strain measured with the sensors, the equation is computed to find at least one of the seven force components, e.g. air pressure. The estimated air pressure is compared with a reference pressure, to determine whether the tire pressure is dropped or not. Further, a secondary sensor is mounted in a peculiar region where the surface strain is substantially not affected by the vertical load.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 9, 2008
    Inventor: Akihiro Miyoshi
  • Patent number: 7429053
    Abstract: A subframe structure for an automotive vehicle wherein a subframe is attached through a rubber mount to a vehicle body, suspension components are assembled onto the subframe so that the suspension components are held connected to the vehicle body through the subframe, and a detecting assembly capable of providing an output signal according to a load that acts between a subframe and a vehicle body is provided. A rubber mount for use in this subframe structure is also disclosed.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: September 30, 2008
    Assignees: Tokai Rubber Industries, Ltd., Sumitomo Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd., Advics Co., Ltd.
    Inventors: Akira Katagiri, Takehiro Yamada, Akihiro Miyoshi, Tamio Tsurita, Motoshi Suzuki
  • Patent number: D575725
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 26, 2008
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Satoshi Hirai, Akihiro Miyoshi, Mitsuhiro Wada, Masamichi Kiyoyangi, Tsudoi Eguchi, Kensaku Tsuji, Tetsuya Sakaguchi