IDiyas

For the Inventor, By the Inventor

Shimizu, Japan

Kotaro Naya

USPTO Granted Patents = 6

Average Co-Inventor Count = 4.2

ph-index = 5

Forward Citations = 89(Granted Patents)


Location History:

  • Ebina, JP (1987 - 1989)
  • Shimizu, JP (1991 - 1994)

Company Filing History:

goldMedal6 out of 42,485 
 
Hitachi, Ltd.
 patents

Years Active: 1987-1994

Loading Chart...
6 patents (USPTO):Explore Patents
1. 5314321 - Screw-type rotary fluid machine including rotors having treated surfaces (1994-05-24),
2. 5223052 - Method of treating surfaces of rotors of the screw type rotary machine (1993-06-29),
3. 4993930 - Vacuum pump apparatus and shaft sealing device therefor (1991-02-19),
4. 4797068 - Vacuum evacuation system (1989-01-10),
5. 4770609 - Two-stage vacuum pump apparatus and method of operating the same (1988-09-13),
6. 4714418 - Screw type vacuum pump (1987-12-22),
This text is generated by artificial intelligence and may not be accurate.
Please report any incorrect information to support@idiyas.com
Loading…