Hayashi; Izuo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hayashi; Izuo.The latest application filed is for "injection-type semiconductor laser".

Company Profile

0.10.0

Hayashi; Izuo - Tokyo JP
Hayashi; Izuo - Berkeley Heights NJ

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Injection-type semiconductor laser Grant 4,297,652 - Hayashi , et al. October 27, 1	1981-10-27
Semiconductor laser device Grant 4,270,096 - Hayashi , et al. May 26, 1	1981-05-26
Heterostructure laser having a stripe region defined in an active layer by a difference in impurity Grant 4,105,955 - Hayashi , et al. August 8, 1	1978-08-08
Semiconductor laser device equipped with a silicon heat sink Grant 4,092,614 - Sakuma , et al. May 30, 1	1978-05-30
Hermetically-sealed injection semiconductor laser device Grant 4,003,074 - Yonezu , et al. January 11, 1	1977-01-11
Semiconductor double heterostructure laser device and method of making the same Grant 3,983,510 - Hayashi , et al. September 28, 1	1976-09-28
Spontaneously Emitting Hetero-structure Junction Diodes Grant 3,812,516 - Hayashi May 21, 1	1974-05-21
Double Heterostructure Junction Lasers Grant 3,758,875 - Hayashi September 11, 1	1973-09-11
High Power, Fundamental Transverse Mode Operation In Double Heterostructure Lasers Grant 3,733,561 - Hayashi May 15, 1	1973-05-15
Double Heterostructure Laser Diodes Grant 3,691,476 - Hayashi September 12, 1	1972-09-12

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.