Polishing body and manufacturing method therefor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11745303
APP PUB NO 20190247975A1
SERIAL NO

16317092

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In an abrasive body used for polishing by a CMP method, provided with a resin structure, a plurality of abrasive grains, and a plurality of longitudinal pores, and made in a form of disc, the longitudinal pore has a length in a thickness direction of the abrasive body longer than a length in a planar direction of the abrasive body, the resin structure includes communicating pores each of which communicating with the longitudinal pore and/or communicating with other communicating pore, the communicating pores include at least one of the abrasive grains in the pores respectively, and the average diameter of the communicating pores is not more than 18 times larger than the average diameter of the abrasive grains.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
NORITAKE CO LIMITEDNISHI-KU NAGOYA-SHI AICHI 451-8501

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitajima, Shota Nagoya, JP 2 2
Omori, Wataru Nagoya, JP 6 130
Sato, Makoto Nagoya, JP 741 8183
Yamaguchi, Takaya Nagoya, JP 17 67

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 Mar 5, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 5, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 5, 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