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Chigasaki, Japan

Masateru Watanabe

USPTO Granted Patents = 6

Average Co-Inventor Count = 3.8

ph-index = 5

Forward Citations = 80(Granted Patents)

Location History:

Kanagawa, JP (1988 - 1991)
Chigasaki, JP (1989 - 2001)

Company Filing History:

5 out of 42,508

Years Active: 1988-2001

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6320836 - Apparatus for ensuring operational clearance between a rotating disc type medium and a disc cartridge enclosing the medium (2001-11-20),

2. 5418763 - Disc recording system (1995-05-23),

3. 5172362 - Recording medium loading mechanism (1992-12-15),

4. 5016237 - Prism optics stable with respect to wavelength and temperature (1991-05-14),

5. 4807212 - Correcting for comatic aberration in an optical head of an optical disk (1989-02-21),

6. 4742218 - Focus error detection apparatus utilizing focusing an front and rear (1988-05-03),

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