IDiyas

For the Inventor, By the Inventor

Kawasaki, Japan

Masao Kumagai

USPTO Granted Patents = 14


Average Co-Inventor Count = 3.2

ph-index = 4

Forward Citations = 51(Granted Patents)


Location History:

  • Sendai, JP (1989)
  • Kawasaki, JP (2005 - 2009)
  • Tokyo, JP (1987 - 2010)
  • Kasugai, JP (2007 - 2014)

Company Filing History:

goldMedal9 out of 39,228 
 
Fujitsu Corporation
 patents
silverMedal2 out of 1,674 
 
Fujitsu Semiconductor Limited
 patents
bronzeMedal1 out of 36 
 
Kyushu Fujitsu Electronics Limited
 patents
4. 1 out of 1,075 
 
Spansion Llc.
 patents
5. 1 out of 467 
 
Fujitsu Microelectronics Limited
 patents
6. 1 out of 1,021 
 
Jatco Corporation
 patents
where one patent can have more than one assignee

Years Active: 1987-2014

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14 patents (USPTO):Explore Patents
1. 8823344 - Control circuit, electronic device, and method for controlling power supply (2014-09-02),
2. 7978168 - D/A converter (2011-07-12),
3. 7903071 - Driver IC for display and display including same (2011-03-08),
4. 7838075 - Surface strengthening method (2010-11-23),
5. 7580020 - Semiconductor device and liquid crystal panel driver device (2009-08-25),
6. 7268763 - Method for driving display and drive circuit for display (2007-09-11),
7. 7215312 - Semiconductor device, display device, and signal transmission system (2007-05-08),
8. 7180512 - Integrated circuit free from accumulation of duty ratio errors (2007-02-20),
9. 7098878 - Semiconductor device and liquid crystal panel driver device (2006-08-29),
10. 7079104 - Semiconductor device and liquid crystal panel display driver (2006-07-18),
11. 6847346 - Semiconductor device equipped with transfer circuit for cascade connection (2005-01-25),
12. 4883975 - Schmitt trigger circuit (1989-11-28),
13. 4774620 - Logic circuit (1988-09-27),
14. 4703202 - Two-stage gate circuit providing inverted and non-inverted outputs (1987-10-27),
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