Method for manufacturing polycrystalline silicon fragment and polycrystalline silicon block fracture device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11590509
APP PUB NO 20190240669A1
SERIAL NO

16385816

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A polycrystalline silicon block fracture device includes a fracturing part mechanically fracturing a polycrystalline silicon block material to produce a polycrystalline silicon fragment including a polycrystalline silicon powder having a particle size of 500 to 1000 μm then discharging from a discharging port; a falling movement part continuous with a downstream of the fracturing part allowing said polycrystalline silicon fragment discharged from the discharging port to fall by gravity; a receiver part positioned at downstream of the falling movement part and receives the polycrystalline silicon fragment after falling through the falling movement part; and the falling movement part includes a suction removing part in which at least part of the polycrystalline silicon powder included in the polycrystalline silicon fragment is removed by suctioning to a different direction from falling direction; the suction removing part suctions at a suction rate of 1 to 20 m3/min.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • TOKUYAMA CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Masami Yamaguchi, JP 6 37
Kawaguchi, Kazuhiro Yamaguchi, JP 11 19
Kondo, Manabu Yamaguchi, JP 45 254
Mito, Yoshifumi Yamaguchi, JP 3 3
Uchida, Sho Yamaguchi, JP 5 5
Yoshimatsu, Nobuaki Yamaguchi, JP 6 10

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 28, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 28, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 28, 2034
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