Hitoshi Narusawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid
- Patent number 6,674,868
- Issue date Jan 6, 2004
- Shoei Co., Ltd.
- Hitoshi Narusawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing an aluminum solid electrolyte capacitor
- Patent number 6,605,127
- Issue date Aug 12, 2003
- Shoei Co., Ltd.
- Hitoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for making a electrolytic capacitor
- Patent number 5,580,358
- Issue date Dec 3, 1996
- Shoei Co., Ltd.
- Hitoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Digital signal processing circuit
- Patent number 5,151,831
- Issue date Sep 29, 1992
- Nakamichi Corporation
- Hitoshi Narusawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Acoustic signal processor
- Publication number 20050091043
- Publication date Apr 28, 2005
- Adphox Corporation
- Hitoshi Narusawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Amplification apparatus amplifying responses to frequency
- Publication number 20040161128
- Publication date Aug 19, 2004
- SHOEI CO., LTD.
- Hitoshi Narusawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Hearing aid
- Publication number 20040032963
- Publication date Feb 19, 2004
- SHOEI CO., LTD.
- Hitoshi Narusawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of manufacturing an aluminum solid electrolyte capacitor
- Publication number 20030008531
- Publication date Jan 9, 2003
- SHOEI CO., LTD.
- Hitoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Acoustic signal processor
- Publication number 20020118846
- Publication date Aug 29, 2002
- Adphox Corporation
- Hitoshi Narusawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS