Tatumi Naganuma

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image displaying apparatus and image display program
- Patent number 8,259,034
- Issue date Sep 4, 2012
- Totoku Electric Co., Ltd.
- Katuhiro Ichikawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multi-gradation monochromatic image display method, multi-gradation...
- Patent number 7,483,568
- Issue date Jan 27, 2009
- Totoku Electric Co., Ltd.
- Shigeo Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Number-of-gradation-levels decreasing method, image displaying meth...
- Patent number 6,819,335
- Issue date Nov 16, 2004
- Totoku Electric Co., Ltd.
- Tatumi Naganuma
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
IMAGE DISPLAYING APPARATUS AND IMAGE DISPLAY PROGRAM
- Publication number 20100045580
- Publication date Feb 25, 2010
- Totoku Electric Co., Ltd.
- Katuhiro Ichikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multi-gradation monochromatic image display method, multi-gradation...
- Publication number 20060023967
- Publication date Feb 2, 2006
- Totoku Electric Co., Ltd.
- Shigeo Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Number-of-gradation-levels decreasing method, image displaying meth...
- Publication number 20030137478
- Publication date Jul 24, 2003
- Tatumi Naganuma
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS