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Hachioji, Japan

Hitoshi Ohashi

This inventor holds 6 USPTO granted patents. Top assignee: Olympus Optical Company, Ltd.. Active years: 1997-2000.

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 58(Granted Patents)

Company Filing History:

Olympus Optical Company, Ltd.

Years Active: 1997-2000

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6099146 - Illuminating optical system for cutting infrared light by relief type (2000-08-08),

2. 6095667 - Illuminating optical system for use in projecting exposure device (2000-08-01),

3. 5843321 - Method of manufacturing optical element (1998-12-01),

4. 5770120 - Method of manufacturing die and optical element performed by using the (1998-06-23),

5. 5737125 - Diffractive optical element and optical system including the same (1998-04-07),

6. 5695274 - Illuminating optical system for use in projecting exposure device (1997-12-09),

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