Yukari Hiratsuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
State detecting device and optical disk device
- Patent number 6,421,308
- Issue date Jul 16, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Naoki Kizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk-rotation control apparatus
- Patent number 6,331,967
- Issue date Dec 18, 2001
- Mitsubishi Denki Kabushiki Kaisha
- Shigeru Matsui
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recorder and data producing circuit
- Patent number 6,275,878
- Issue date Aug 14, 2001
- Mitsubishi Denki Kabushiki Kaisha
- Noboru Yashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk rotation control device
- Patent number 6,259,662
- Issue date Jul 10, 2001
- Mitsubishi Denki Kabushiki Kaisha
- Shigeru Matsui
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk-rotation control apparatus
- Patent number 6,118,742
- Issue date Sep 12, 2000
- Mitsubishi Denki Kabushiki Kaisha
- Shigeru Matsui
- G11 - INFORMATION STORAGE
Information Patent Grant
MPEG audio decoder for detecting and correcting irregular patterns
- Patent number 5,852,805
- Issue date Dec 22, 1998
- Mitsubishi Denki Kabushiki Kaisha
- Yukari Hiratsuka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sub-band audio signal synthesizing apparatus
- Patent number 5,694,522
- Issue date Dec 2, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Yukari Hiratsuka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Anti-alias font generator
- Publication number 20020167530
- Publication date Nov 14, 2002
- Yukari Hiratsuka
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS