IDiyas

For the Inventor, By the Inventor

Saitama-ken, Japan

Tsuneo Yamamoto

USPTO Granted Patents = 5

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 70(Granted Patents)


Location History:

  • Toyokawa-shi, Aichi, JP (1998)
  • Chichibu, JP (1999)
  • Saitama-ken, JP (2001 - 2004)

Company Filing History:

goldMedal1 out of 15 
 
Ulvac Coating Corporation
 patents
silverMedal1 out of 14 
 
Mitsubishi Electric Company
 patents
bronzeMedal1 out of 1 
 
Ulcoat (ulvac Coating Corporation)
 patent
4. 1 out of 15,844 
 
Mitsubishi Electric Corporation
 patents
5. 3 out of 832,680 
Other
 patents
where one patent can have more than one assignee

Years Active: 1998-2004

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5 patents (USPTO):Explore Patents
1. 6689515 - Phase-shifting photomask blank, phase-shifting photomask, method for producing them and apparatus for manufacturing the blank (2004-02-10),
2. 6228541 - Phase-shifting photomask blank, phase-shifting photomask, method for producing them and apparatus for manufacturing the blank (2001-05-08),
3. 5952128 - Phase-shifting photomask blank and method of manufacturing the same as (1999-09-14),
4. 5938897 - Method of manufacturing phase-shifting photomask blank (1999-08-17),
5. 5737786 - Collapsible bed structure for bed-ridden invalids (1998-04-14),
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