Moisture sensor, moisture detector, and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8750732
SERIAL NO

13604845

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A moisture sensor for detecting moisture content of an object includes a light source to emit light having an infrared wavelength that is absorbed by water; an optical system to receive the light from the light source and output linearly polarized light having a first polarization direction in a direction toward the object, and to receive light scattered from the object and output linearly polarized light having a second polarization direction perpendicular to the first polarization direction in another direction other than the direction toward the object; and a photodetector to receive the linearly polarized light having the second polarization direction output from the optical system.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoshi, Fumikazu Miyagi, JP 30 306
Ishii, Toshihiro Miyagi, JP 48 596
Oba, Yoshihiro Miyagi, JP 104 1916
Sugawara, Satoru Miyagi, JP 51 1135

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 10, 2025
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00