Single-crystal diamond material, single-crystal diamond chip, and perforated tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10774442
APP PUB NO 20190218685A1
SERIAL NO

16359638

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Abstract

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In a single-crystal diamond material, a concentration of non-substitutional nitrogen atoms is not more than 200 ppm, a concentration of substitutional nitrogen atoms is lower than the concentration of the non-substitutional nitrogen atoms, and the single-crystal diamond material has a crystal growth main surface having an off angle of not more than 20°. A perforated tool includes a single-crystal diamond die, wherein in the single-crystal diamond die, a concentration of non-substitutional nitrogen atoms is not more than 200 ppm, a concentration of substitutional nitrogen atoms is lower than the concentration of the non-substitutional nitrogen atoms, and the single-crystal diamond die has a low-index plane represented by a Miller index of not less than −5 and not more than 5 in an integer, a perpendicular line of the low-index plane having an off angle of not more than 20° relative to an orientation of a hole for wire drawing.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO ELECTRIC INDUSTRIES LTD5-33 KITAHAMA 4-CHOME CHUO-KU OSAKA-SHI OSAKA 5410041 ?5410041
SUMITOMO ELECTRIC HARDMETAL CORP1-1 KOYAKITA 1-CHOME ITAMI-SHI HYOGO 664-0016

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Yutaka Itami, JP 311 3245
Nishibayashi, Yoshiki Itami, JP 95 707
Sumiya, Hitoshi Itami, JP 92 583
Tatsumi, Natsuo Itami, JP 36 101
Ueda, Akihiko Itami, JP 62 341

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