Chiaki Yamawaki

Person

Habikino, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Motor speed control device
- Patent number 6,049,182
- Issue date Apr 11, 2000
- Sharp Kabushiki Kaisha
- Masaji Nakatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed control device
- Patent number 6,031,966
- Issue date Feb 29, 2000
- Sharp Kabushiki Kaisha
- Masaji Nakatani
- G01 - MEASURING TESTING
Information Patent Grant
Phase detecting circuit of brushless motor and magnetic recording a...
- Patent number 5,920,163
- Issue date Jul 6, 1999
- Sharp Kabushiki Kaisha
- Hiroshi Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Image input apparatus having a spatial filter controller
- Patent number 5,834,761
- Issue date Nov 10, 1998
- Sharp Kabushiki Kaisah
- Hideo Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Reproduced waveform equalization circuit
- Patent number 5,668,746
- Issue date Sep 16, 1997
- Sharp Kabushiki Kaisha
- Tetsuo Iwaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-track magnetic signal reproducing apparatus
- Patent number 5,517,369
- Issue date May 14, 1996
- Sharp Kabushiki Kaisha
- Hitoshi Takeuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital data detector for reducing errors due to frequency variations
- Patent number 5,355,392
- Issue date Oct 11, 1994
- Sharp Kabushiki Kaisha
- Hitoshi Takeuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tracking control device for magnetic recording/reproducing apparatus
- Patent number 5,262,908
- Issue date Nov 16, 1993
- Sharp Kabushiki Kaisha
- Tadashi Iwamatsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording position compensation circuit for use in digital informat...
- Patent number 5,173,815
- Issue date Dec 22, 1992
- Sharp Kabushiki Kaisha
- Tetsuo Iwaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Wave shaping circuit
- Patent number 4,812,987
- Issue date Mar 14, 1989
- Sharp Kabushiki Kaisha
- Chiaki Yamawaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
FILM THICKNESS MEASUREMENT DEVICE
- Publication number 20150316369
- Publication date Nov 5, 2015
- Sharp Kabushiki Kaisha
- Norikazu Hohshi
- G01 - MEASURING TESTING
Information Patent Application
FILM THICKNESS MEASUREMENT DEVICE
- Publication number 20150219450
- Publication date Aug 6, 2015
- Sharp Kabushiki Kaisha
- Norikazu Hohshi
- G01 - MEASURING TESTING

Chiaki Yamawaki

Person

Patents Grantslast 30 patents

Motor speed control device

Motor speed control device

Phase detecting circuit of brushless motor and magnetic recording a...

Image input apparatus having a spatial filter controller

Reproduced waveform equalization circuit

Multi-track magnetic signal reproducing apparatus

Digital data detector for reducing errors due to frequency variations

Tracking control device for magnetic recording/reproducing apparatus

Recording position compensation circuit for use in digital informat...

Wave shaping circuit

Patents Applicationslast 30 patents

FILM THICKNESS MEASUREMENT DEVICE

FILM THICKNESS MEASUREMENT DEVICE