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Ichinomiya, Japan

Tomonori Niwa

USPTO Granted Patents = 13 (Patent Applications = 1)

Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 44(Granted Patents)

Location History:

Nagoya, JP (1997)
Aichi, JP (1997 - 2003)
Ichinomiya, JP (2003 - 2017)

Company Filing History:

13 out of 2,606

Ngk Spark Plug Company, Limited

Years Active: 1997-2017

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9691652 - Carrier device and ceramic member (2017-06-27),

2. 9276504 - Carrier device and ceramic member (2016-03-01),

3. 7029623 - Ceramic ball, ball bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic ball (2006-04-18),

4. 6696376 - Zirconia containing ceramic ball, method for manufacturing same, ceramic ball bearing and check valve (2004-02-24),

5. 6589448 - Ceramic ball for bearing and ceramic ball bearing using the same (2003-07-08),

6. 6508591 - Conductive ceramic bearing ball, ball bearing, motor having bearing, hard disk drive, and polygon scanner (2003-01-21),

7. 6472075 - Sintered silicon nitride member and ceramic ball (2002-10-29),

8. 6464906 - Method of manufacturing spherical bodies by rotation, spherical bodies made by the method and a powder composition for use in the method (2002-10-15),

9. 6315454 - Ceramic bearing ball (2001-11-13),

10. 5994251 - Sintered ceramic mainly composed of alumina and a sintered ceramic part (1999-11-30),

11. 5887620 - Porous ceramic material and producing method of same, and valve unit (1999-03-30),

12. 5688728 - Porous ceramic material (1997-11-18),

13. 5600867 - Car kiln wheel having silicon nitride rotating members (1997-02-11),

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