Niguchi; Hirotoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Niguchi; Hirotoshi.The latest application filed is for "erasable optical disk media and method of recording/erasing the same".
- Niguchi; Hirotoshi - Kashihara JP
- Niguchi; Hirotoshi - Osaka JP
| Patent | Date |
|---|---|
| Erasable optical disk media and method of recording/erasing the same Grant 5,118,541 - Yamamoto , et al. June 2, 1 | 1992-06-02 |
| Speaker diaphragm and method of preparation of the same Grant 4,291,781 - Niguchi , et al. September 29, 1 | 1981-09-29 |
| Acoustic diaphragm with polyurethane elastomer coating Grant 4,140,203 - Niguchi , et al. February 20, 1 | 1979-02-20 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 