Spherical magnesium oxide, manufacturing method thereof, thermal conductive filler and resin composition

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11912847
APP PUB NO 20210309833A1
SERIAL NO

17268071

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The objective of the present invention is to provide: a spherical magnesium oxide which has high sphericity and excellent moisture resistance, and has excellent fluidity by which a resin composition exhibits excellent fluidity when filled in a resin; and a method for producing the same. The present invention is a spherical magnesium oxide characterized in that: 10-2000 ppm of boron is contained; the total content of silicon and phosphorus is 300-4000 ppm; and the sphericity that can be read from the SEM photograph is 1.00-1.10, when the volume-based cumulative 50% particle diameter (D50) measured by means of a laser diffraction scattering particle size distribution measurement, is in the range of 3-200 μm.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TATEHO CHEMICAL INDUSTRIES CO LTDAKO-SHI HYOGO 678-0239

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chikazawa, Tomoaki Ako, JP 7 3
Osaki, Yoshihisa Ako, JP 6 2
Tsutsumi, Keisuke Ako, JP 6 14

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
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 27, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 27, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 27, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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