Patents by Inventor Yoshiko Morishita

Yoshiko Morishita 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: 6161432
    Abstract: A vibrating gyroscope includes a vibrating body and at least one driving member located on the vibrating body. The at least one driving member is arranged vibrate the vibrating body in a direction that is substantially perpendicular to an axis of the vibrating body. At least two detection members are are arranged so as to be spaced from each other and operatively connected to the vibrating body. The at least two detection members are located on opposite sides of a plane which includes the axis and a vibrating direction of the vibrating body such that the at least two detection members detect vibration of the vibrating body at substantially the same amount and detect at a different amount a Coriolis force generated by a rotational angular velocity applied to the vibrating body..
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: December 19, 2000
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 6016699
    Abstract: A method of forming a vibrating gyroscope includes the steps of providing a vibrating body and disposing at least one driving member on the vibrating body so that the at least one driving member is arranged to generate vibration in the vibrating body in a vibrating direction that is substantially perpendicular to an axis of the vibrating body. Then, at least two detection members are disposed on the vibrating body such that the at least two detection members are spaced from each other, located on opposite sides of a plane including the axis and the vibrating direction of the vibrating body, arranged to detect a rotational angular velocity applied to the vibrating body and arranged in a non-parallel relationship relative to each other and in a non-parallel relationship relative to the at least one driving member.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: January 25, 2000
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 6016698
    Abstract: A vibrating gyroscope comprising includes a vibrating body. At least one driving member is located on the vibrating body and vibrates the vibrating body in a vibrating direction that is substantially perpendicular to an axis of said vibrating body. At least two detection members are located so as to be spaced from each other on the vibrating body and located on opposite sides of a plane including the axis and the vibrating direction of the vibrating body. The at least one driving member is arranged in a non-parallel relationship relative to each of the at least two detection members. The at least two detection members are arranged to detect a rotational angular velocity applied to the vibrating body and the at least two detection members are arranged in a non-parallel relationship relative to each other.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: January 25, 2000
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 5874674
    Abstract: The vibrator includes, for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 23, 1999
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 5569969
    Abstract: The vibrator includes for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 29, 1996
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 5505085
    Abstract: The vibrator includes, for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: April 9, 1996
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
  • Patent number: 5349857
    Abstract: The vibrator includes, for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: September 27, 1994
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita