Membership
Tour
Register
Log in
Masanobu Sugiyama
Follow
Person
Miyagi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Magnetic tape cassette slider lock mechanism with tapered surfaces...
Patent number
6,421,203
Issue date
Jul 16, 2002
Sony Corporation
Masanobu Sugiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Tape cassette with dual hub lock torsion springs
Patent number
5,143,317
Issue date
Sep 1, 1992
Sony Corporation
Masanobu Sugiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cassette
Patent number
5,140,488
Issue date
Aug 18, 1992
Sony Corporation
Masanobu Sugiyama
G11 - INFORMATION STORAGE