Anode body for tungsten capacitors

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9865402
SERIAL NO

15106358

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An anode body for an electrolytic capacitor, prepared by sintering a tungsten powder to obtain a sintered body and subjecting the obtained sintered body to chemical conversion to form a dielectric layer comprising a tungsten trioxide compound on the surface of the sintered body, wherein the ratio of the hydration water in the tungsten trioxide compound becomes one molecule or less to 10 molecules of the tungsten trioxide compound. Use of the anode body of the present invention enables production of a tungsten capacitor, which is reduced in the capacitance change due to DC voltage (bias dependency).

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SHOWA DENKO K.K.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mitsumoto, Ryuichi Tokyo, JP 10 9
Naito, Kazumi Tokyo, JP 136 579

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 9, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 9, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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