The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Oct. 26, 1987
Applicant:
Inventors:
Toshio Katsuyama, Hachioji, JP;
Hiroyoshi Matsumura, Saitama, JP;
Hiroaki Inoue, Hachioji, JP;
Tadashi Fukuzawa, Tokyo, JP;
Naoki Chinone, Chofu, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350 9614 ; 350355 ; 357 17 ; 357 30 ; 372 45 ;
Abstract
An optical device utilizes a polariton substance and utilizes the absorption wavelength band of excitonic polaritons. Further, an external stimulus such as electric field, magnetic field, stress, current or electromagnetic wave (light) is continuously or intermittently given to the polariton substance, thereby to modulate light which enters the optical device. Thus, a modulating operation of ultra-high speed is possible.
Katsuyama, Toshio. (1989). Optical modulating device utilizing polariton substance (U.S. Patent No. 4861130). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4861130
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile