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For the Inventor, By the Inventor

Omiya, Japan

Kozo Shirato

USPTO Granted Patents = 9


Average Co-Inventor Count = 2.9

ph-index = 6

Forward Citations = 166(Granted Patents)


Location History:

  • Saitama, JP (1984 - 1987)
  • Omiya, JP (1986 - 1988)
  • Ohmiya, JP (1978 - 1994)
  • Kawaguchi, JP (2005)

Company Filing History:

goldMedal5 out of 5 
 
Erma Optical Works, Ltd.
 patents
silverMedal2 out of 2 
 
Erma Inc.
 patents
bronzeMedal1 out of 1 
 
Erma Incorporation
 patent
4. 1 out of 879 
 
Sekisui Chemical Co., Ltd.
 patents
5. 1 out of 1,960 
 
Showa Denko K.k.
 patents
6. 1 out of 2 
 
Ulvac Service Corporation
 patents
where one patent can have more than one assignee

Years Active: 1978-2005

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9 patents (USPTO):Explore Patents
1. 6955758 - Ozone treating apparatus (2005-10-18),
2. 5285595 - Hydroponic growing system (1994-02-15),
3. 4729773 - Unit for degassing liquids (1988-03-08),
4. 4680552 - Apparatus for measuring impurities in super-pure water without exposure (1987-07-14),
5. 4652364 - Apparatus for adjusting the concentration of a solution (1987-03-24),
6. 4651087 - Apparatus for measuring impurities in ultrapure water (1987-03-17),
7. 4629561 - Liquid chromatograph with flow controller (1986-12-16),
8. 4469495 - Method and device for degassifying liquid (1984-09-04),
9. 4126393 - High-sensitivity differential refractometer (1978-11-21),
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