公开(公告)号：DE602007012390D1

公开(公告)日：2011-03-24

申请号：DE602007012390

申请日：2007-09-03

Applicant: YAMAHA CORP

Inventor： YAMASHITA MASAYOSHI ,  SAWADA SHUICHI ,  SUZUKI HIDEO ,  HAYASHI YOSHINORI

IPC: G10C3/12 ,  G10H1/34

公开(公告)号：DE3686330D1

公开(公告)日：1992-09-10

申请号：DE3686330

申请日：1986-12-18

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  HAYASHI YOSHINORI ,  KURAHASHI KAZUO

IPC: G01D5/14 ,  G01D5/16

Abstract: In construction of a non-contact type pattern sensor for detecting pattern output from a recording medium, at least a pair of detecting elements such as magnetic resistor elements are arranged facing different surfaces of the recording medium with equally spaces clearance and outputs from the detecting elements are electrically processed so that detected pattern output from the pattern sensor should not be influenced by fluctuation in clearance to be caused by low production precision and/or warping of the recording medium.

公开(公告)号：CH675937A5

公开(公告)日：1990-11-15

申请号：CH76988

申请日：1988-03-01

Applicant: YAMAHA CORP ,  YAMAHA MOTOR CO LTD

Inventor： IIJIMA KENZABUROU ,  HAYASHI YOSHINORI ,  SUZUKI MAKOTO ,  UCHIYAMA ATSUSHI

IPC: G01D5/245 ,  H03M1/00

公开(公告)号：DE3830868A1

公开(公告)日：1989-04-06

申请号：DE3830868

申请日：1988-09-10

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  NISHIMURA SEIYA ,  HAYASHI YOSHINORI

IPC: H03M1/24 ,  G01D5/244 ,  G01P3/481 ,  G01P3/487 ,  G06K19/06

Abstract: In constructoin of a magnetic recording medium provided with one circular track for magnetic graduations and another circular track for standard marks, the standard marks are accompanied with specified magnetic identification marks so that discrimination between the standard marks can be fairly done without any influence by the number of the standard marks only by reading them out together with the identification marks. The medium is advantageously used for displacement detectors such as magnetic rotary encoders and magnetic linear scales.

公开(公告)号：DE3830868C2

公开(公告)日：1996-05-30

申请号：DE3830868

申请日：1988-09-10

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  NISHIMURA SEIYA ,  HAYASHI YOSHINORI

IPC: H03M1/24 ,  G01D5/244 ,  G01P3/481 ,  G01P3/487 ,  G06K19/06 ,  H03M1/22 ,  G11B5/82 ,  G01B7/00 ,  G01D15/12

Abstract: In constructoin of a magnetic recording medium provided with one circular track for magnetic graduations and another circular track for standard marks, the standard marks are accompanied with specified magnetic identification marks so that discrimination between the standard marks can be fairly done without any influence by the number of the standard marks only by reading them out together with the identification marks. The medium is advantageously used for displacement detectors such as magnetic rotary encoders and magnetic linear scales.

公开(公告)号：DE3788893T2

公开(公告)日：1994-08-04

申请号：DE3788893

申请日：1987-03-04

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  KURAHASHI KAZUO ,  HAYASHI YOSHINORI

IPC: H03M1/06 ,  H03M1/24 ,  G01D5/249

Abstract: In construction of a non-contact detection type rotary encoder, fluctuation in clearance between a rotary recording medium and a detection head is automatically canceled to pose no substantial influence on the system output.

公开(公告)号：AT550753T

公开(公告)日：2012-04-15

申请号：AT07017295

申请日：2007-09-04

Applicant: YAMAHA CORP

Inventor： HAYASHI YOSHINORI ,  SUZUKI HIDEO

IPC: G10H1/34 ,  G06F3/01

Abstract: In order to realize a small and light key actuating apparatus for actuating a key which is rotatably supported with respect to a frame, a key actuating apparatus (7) is provided which includes a polymer transducer (9) for rotatably moving the key (3) by using a deformation of the transducer, wherein the transducer which is substantially formed in a plate shape includes: a polymer film (15) which is dielectric and made from an elastically deformable polymer material; and a pair of electrodes (17) arranged at both sides of surfaces of the polymer film, and the transducer is deformed corresponding to switching between an application of voltage and a lack of voltage between the electrodes.

公开(公告)号：CH675655A5

公开(公告)日：1990-10-15

申请号：CH10188

申请日：1988-01-13

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  HAYASHI YOSHINORI

IPC: H03L7/06 ,  H03H17/00 ,  H03H17/02 ,  H03M1/00 ,  H03M1/08

公开(公告)号：DE3788893D1

公开(公告)日：1994-03-10

申请号：DE3788893

申请日：1987-03-04

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  KURAHASHI KAZUO ,  HAYASHI YOSHINORI

IPC: H03M1/06 ,  H03M1/24 ,  G01D5/249

Abstract: In construction of a non-contact detection type rotary encoder, fluctuation in clearance between a rotary recording medium and a detection head is automatically canceled to pose no substantial influence on the system output.

公开(公告)号：DE3686330T2

公开(公告)日：1993-02-18

申请号：DE3686330

申请日：1986-12-18

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABUROU ,  HAYASHI YOSHINORI ,  KURAHASHI KAZUO

IPC: G01D5/14 ,  G01D5/16

Abstract: In construction of a non-contact type pattern sensor for detecting pattern output from a recording medium, at least a pair of detecting elements such as magnetic resistor elements are arranged facing different surfaces of the recording medium with equally spaces clearance and outputs from the detecting elements are electrically processed so that detected pattern output from the pattern sensor should not be influenced by fluctuation in clearance to be caused by low production precision and/or warping of the recording medium.