Sumitomo; Kotaro
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sumitomo; Kotaro.The latest application filed is for "crayon".
- Sumitomo; Kotaro - Sijonawate N/A JP
- Sumitomo; Kotaro - Shijonawate-shi JP
- Sumitomo; Kotaro - Osaka JP
| Patent | Date |
|---|---|
| Crayon Grant 8,431,632 - Sumitomo , et al. April 30, 2 | 2013-04-30 |
| Crayon and process for producing the same Grant 8,299,143 - Sumitomo , et al. October 30, 2 | 2012-10-30 |
| Crayon and process for producing the same Grant 8,242,190 - Sumitomo , et al. August 14, 2 | 2012-08-14 |
| Process for production of black crayon Grant 7,943,684 - Sumitomo , et al. May 17, 2 | 2011-05-17 |
| Crayon App 20100273914 - Sumitomo; Kotaro ; et al. | 2010-10-28 |
| Crayon And Process For Producing The Same App 20100016471 - Sumitomo; Kotaro ; et al. | 2010-01-21 |
| Crayon And Process For Producing The Same App 20090326096 - Sumitomo; Kotaro ; et al. | 2009-12-31 |
| Process For Production Of Black Crayon App 20090247668 - Sumitomo; Kotaro ; et al. | 2009-10-01 |
| Crayon App 20090209678 - Sumitomo; Kotaro ; et al. | 2009-08-20 |
| Photostorage solid drawing medium Grant 7,485,406 - Fukuo , et al. February 3, 2 | 2009-02-03 |
| Solid drawing material and method for producing the same Grant 7,291,210 - Nakamura , et al. November 6, 2 | 2007-11-06 |
| Photostorage solid drawing medium App 20060210924 - Fukuo; Hidetoshi ; et al. | 2006-09-21 |
| Solid drawing material and method for producing the same App 20050252409 - Nakamura, Keiko ; et al. | 2005-11-17 |
| Photostorage solid drawing medium App 20050197423 - Fukuo, Hidetoshi ; et al. | 2005-09-08 |
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