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.:

US 9874768 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 23, 2018

Filed:

Mar. 20, 2017
Applicants:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Photonics Electronics Technology Research Association, Bunkyo-ku, Tokyo, JP;

Inventors:

Takeshi Baba, Tsukuba, JP;

Tatsuya Usuki, Tsukuba, JP;

Suguru Akiyama, Tsukuba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G02F 1/025 (2006.01); G02F 1/225 (2006.01); G02F 1/21 (2006.01); G02F 1/015 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0121 (2013.01); G02F 1/025 (2013.01); G02F 1/2257 (2013.01); G02F 2001/0152 (2013.01); G02F 2001/212 (2013.01);
Abstract

An optical modulation device includes: an optical waveguide formed above a substrate; a phase modulator disposed on part of the optical waveguide; a capacitor connected to the phase modulator and including a lower electrode and an upper electrode; a resistor connected in parallel to the capacitor; and an appended part integrated with the upper electrode and electrically connected to the resistor, wherein the appended part is smaller in area than the capacitor (upper electrode).


Find Patent Forward Citations

Baba, Takeshi. (2018). Optical modulation device (U.S. Patent No. 9874768). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9874768

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…