IDiyas

For the Inventor, By the Inventor

Katsuta, Japan

Akimitsu Okura

USPTO Granted Patents = 6


Average Co-Inventor Count = 4.5

ph-index = 4

Forward Citations = 71(Granted Patents)


Location History:

  • Chiba, JP (1980)
  • Katsuta, JP (1995 - 2000)
  • Hitachinaka, JP (2005 - 2007)

Company Filing History:

goldMedal4 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 2,874 
 
Hitachi-high-technologies Corporation
 patents
bronzeMedal2 out of 33 
 
Hitachi-science Systems, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1980-2007

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6 patents (USPTO):Explore Patents
1. 7274017 - Electron beam apparatus and high-voltage discharge prevention method (2007-09-25),
2. 6949752 - Electron beam apparatus and high-voltage discharge prevention method (2005-09-27),
3. 6031235 - Ultra-high vacuum apparatus (2000-02-29),
4. 5412209 - Electron beam apparatus (1995-05-02),
5. 5393977 - Charged particle beam apparatus and it's operating method (1995-02-28),
6. 4227080 - Device for shifting frozen specimen, for use in scanning type electron (1980-10-07),
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