Toshikazu Yoshino

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical recording disk
- Patent number 5,036,510
- Issue date Jul 30, 1991
- Pioneer Electronic Corporation
- Ryutaro Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc
- Patent number 4,972,404
- Issue date Nov 20, 1990
- Pioneer Electronic Corporation
- Tadahiro Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk and process for producing the same
- Patent number 4,853,260
- Issue date Aug 1, 1989
- Pioneer Electronic Corporation
- Yukio Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording disk
- Patent number 4,847,827
- Issue date Jul 11, 1989
- Pioneer Electric Corporation
- Ryutaro Hayashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Disk type information recording medium
- Patent number 4,791,044
- Issue date Dec 13, 1988
- Pioneer Electronic Corporation
- Toshikazu Yoshino
- G11 - INFORMATION STORAGE
Information Patent Grant
Molding compositions and diaphragms, arm pipes and head shells mold...
- Patent number 4,404,315
- Issue date Sep 13, 1983
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tone-arm elements
- Patent number 4,366,205
- Issue date Dec 28, 1982
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vibratory elements for audio equipment
- Patent number 4,362,772
- Issue date Dec 7, 1982
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Diaphragms for acoustic instruments and method of producing the same
- Patent number 4,352,407
- Issue date Oct 5, 1982
- Tsunehiro Tsukagoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Vibratory elements for audio equipment
- Patent number 4,343,376
- Issue date Aug 10, 1982
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Molding compositions and diaphragms, arm pipes and head shells mold...
- Patent number 4,341,838
- Issue date Jul 27, 1982
- Pioneer Electronic Corporation
- Kunio Imai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Head shell for record player tonearms
- Patent number 4,269,416
- Issue date May 26, 1981
- Pioneer Electronic Corporation
- Toshikazu Yoshino
- G11 - INFORMATION STORAGE
Information Patent Grant
Arm pipe for record player tonearms
- Patent number 4,261,580
- Issue date Apr 14, 1981
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing a carbon diaphragm for an acoustic instrument
- Patent number 4,221,773
- Issue date Sep 9, 1980
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Surface hardening method
- Patent number 4,196,022
- Issue date Apr 1, 1980
- Pioneer Electronic Corporation
- Teruo Tohma
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Toshikazu Yoshino

Person

Patents Grantslast 30 patents

Optical recording disk

Optical disc

Optical disk and process for producing the same

Optical information recording disk

Disk type information recording medium

Molding compositions and diaphragms, arm pipes and head shells mold...

Tone-arm elements

Vibratory elements for audio equipment

Diaphragms for acoustic instruments and method of producing the same

Vibratory elements for audio equipment

Molding compositions and diaphragms, arm pipes and head shells mold...

Head shell for record player tonearms

Arm pipe for record player tonearms

Method of producing a carbon diaphragm for an acoustic instrument

Surface hardening method