Masaaki Hirai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Band and wrist device
- Patent number 6,435,709
- Issue date Aug 20, 2002
- Casio Computer Co., Ltd.
- Tadao Hirano
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
Band and wrist device
- Patent number 6,238,083
- Issue date May 29, 2001
- Casio Computer Co., Ltd.
- Tadao Hirano
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
Wristwatch case with shock absorbing members on the rear side thereof
- Patent number 5,442,602
- Issue date Aug 15, 1995
- Casio Computer Co., Ltd.
- Masaaki Hirai
- G04 - HOROLOGY
Information Patent Grant
Biological signal measuring device
- Patent number 5,411,029
- Issue date May 2, 1995
- Nihon Kohden Corporation
- Masaaki Hirai
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Universal pivot switch with a hemispheric pivotal support member
- Patent number 5,378,862
- Issue date Jan 3, 1995
- Casio Computer Co., Ltd.
- Hideo Tasaka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Band and wrist device
- Publication number 20010006492
- Publication date Jul 5, 2001
- CASIO COMPUTER CO., LTD.
- Tadao Hirano
- A44 - HABERDASHERY JEWELLERY