Mitsuo Utsumi

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Patents Grantslast 30 patents

Information Patent Grant
Tape cassette
- Patent number 5,363,268
- Issue date Nov 8, 1994
- Matsushita Electric Industrial Co., Ltd.
- Mitsuo Utsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette including a locking slider
- Patent number 5,331,498
- Issue date Jul 19, 1994
- Matsushita Electric Industrial Co., Ltd.
- Mitsuo Utsumi
- G11 - INFORMATION STORAGE