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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 4937454 B1

PDFFull Text
Date of Patent:
Jun. 26, 1990

Filed:

Nov. 21, 1988

Radiation detector

Applicant:
Inventors:

Haruo Itoh, Hino, JP;

Toshikazu Shimada, Kokubunji, JP;

Shin-ichi Muramatsu, Higashiyamato, JP;

Tetsuhiko Takahashi, Tokyo, JP;

Hiroshi Takeuchi, Matsudo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry, Stout & Kraus

Primary Examiner:

Constantine Hannaher

Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
25037011 ; 357 30 ;
Abstract

In a radiation detector having a scintillator and a photodiode in combination, an amorphous silicon diode of a refractive index of 3.5 or below is used for a photodector to have a decreased junction capacitance. This shifts the spectral sensitivity characteristic of the photodetector toward the short wavelength side, thus providing a low-noise, high-sensitivity radiation detector matched well with the emission spectrum of the scintillator.

Find Patent Forward Citations

Itoh, Haruo. (1990). Radiation detector (U.S. Patent No. 4937454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4937454

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

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