Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

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United States of America Patent

PATENT NO 11491713
APP PUB NO 20180022024A1
SERIAL NO

15656248

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Abstract

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A resin powder for solid freeform fabrication has a 50 percent cumulative volume particle diameter of from 5 to 100 μm and a ratio (Mv/Mn) of a volume average particle diameter (Mv) to the number average particle diameter (Mn) of 2.50 or less and satisfies at least one of the following conditions (1) to (3):

    (1): Tmf1>Tmf2 and (Tmf1−Tmf2)≥3 degrees C., both Tmf1 and Tmf2 are measured in differential scanning calorimetry measuring according to ISO 3146,(2): Cd1>Cd2 and (Cd1−Cd2)≥3 percent, both Cd1 and Cd2 are measured in differential scanning calorimetry measuring according to ISO 3146, and(3): C×1>C×2 and (C×1−C×2)≥3 percent.

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Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higuchi, Shinzo Tokyo, JP 21 116
Iida, Sohichiroh Kanagawa, JP 17 47
Iwatsuki, Hitoshi Kanagawa, JP 71 913
Kamoda, Kiichi Kanagawa, JP 20 82
Saito, Akira Kanagawa, JP 280 2882
Suzuki, Yasuo Shizuoka, JP 433 5206
Tamoto, Nozomu Shizuoka, JP 102 1521
Yaguchi, Shigenori Tokyo, JP 47 384
Yamashita, Yasuyuki Kanagawa, JP 53 624

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