公开(公告)号：EP2239228A4

公开(公告)日：2015-09-30

申请号：EP09707959

申请日：2009-02-05

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELEC HARDMETAL CORP

发明人： SATO TAKESHI ,  YAMAMOTO KATSUKO ,  TODA NAOHIRO ,  SUMIYA HITOSHI ,  KOBAYASHI YUTAKA

IPC分类号： C01B31/06 ,  B05B1/02 ,  B23B27/14 ,  B23B27/20 ,  B26F3/00 ,  B28D5/00 ,  B82Y30/00 ,  C03B33/10 ,  C04B35/52 ,  C04B35/528 ,  C04B35/645

CPC分类号： C01B31/06 ,  B26F3/004 ,  B82Y30/00 ,  C01B32/25 ,  C03B33/107 ,  C04B35/528 ,  C04B35/645 ,  C04B2235/425 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/5481 ,  C04B2235/72 ,  C04B2235/781 ,  C04B2235/785 ,  Y10T428/218 ,  Y10T428/268

摘要： An object is to provide polycrystalline diamond applicable to diverse applications; and a water jet orifice, a stylus for gravure printing, a scriber, a diamond cutting tool, and a scribing wheel that include such polycrystalline diamond. This object is achieved by polycrystalline diamond obtained by converting and sintering non-diamond carbon under an ultrahigh pressure and at a high temperature without addition of a sintering aid or a catalyst, wherein sintered diamond grains constituting the polycrystalline diamond have an average grain diameter of more than 50 nm and less than 2500 nm and a purity of 99% or more, and the diamond has a D90 grain diameter of (average grain diameter + average grain diameter × 0.9) or less.

摘要翻译： 目的是提供适用于多种应用的多晶金刚石; 喷水口，凹版印刷用触笔，划线机，金刚石切割工具和包括这种多晶金刚石的划线轮。 该目的是通过在超高压和高温下不加入烧结助剂或催化剂来转化和烧结非金刚石碳而获得的多晶金刚石，其中构成多晶金刚石的烧结金刚石晶粒的平均晶粒直径更多 并且金刚石的D90粒径（平均粒径+平均粒径×0.9）以下。

公开(公告)号：EP1671726A4

公开(公告)日：2007-07-25

申请号：EP04792179

申请日：2004-10-08

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELEC HARDMETAL CORP

发明人： SUMIYA HITOSHI ,  KOBAYASHI YUTAKA ,  KAWATE KATSUYUKI ,  NAKASHIMA TAKERU

IPC分类号： B23B27/20 ,  B01J3/06 ,  B23B27/14 ,  B24B53/12 ,  C30B29/04

CPC分类号： B23B27/20 ,  B01J3/06 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068 ,  B23B27/14 ,  B23B2240/08 ,  B24B53/12 ,  C30B29/04

摘要： Various types of diamond tools are provided by utilizing the fact that a synthetic single crystal diamond for use in a tool having a nitrogen content of 3 ppm or less exhibits an enhanced hardness in (100) face direction and simultaneously the reduction in defects. The above synthetic single crystal diamond is synthesized by the temperature difference method under an ultra high pressure and high temperature condition and contains, in its crystals, nickel atoms intruded in a way of atom substitution type or boron and nickel atoms intruded in a way of atom substitution type.

公开(公告)号：EP2848716A4

公开(公告)日：2016-02-24

申请号：EP14792151

申请日：2014-04-16

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELEC HARDMETAL CORP

发明人： NISHIBAYASHI YOSHIKI ,  UEDA AKIHIKO ,  SUMIYA HITOSHI ,  KOBAYASHI YUTAKA ,  SEKI YUICHIRO ,  TAKAHASHI TOSHIYA

IPC分类号： C30B29/04 ,  C01B31/06 ,  C30B25/18 ,  C30B25/20

CPC分类号： C30B29/04 ,  C01B32/25 ,  C30B25/186 ,  C30B25/20

摘要： A single crystal diamond (10) has a surface (10a). In the single crystal diamond (10), a measurement region (20) is defined in the surface (20a), the measurement region (20) includes a portion exhibiting a transmittance that is highest in the single crystal diamond (10) and a portion exhibiting a transmittance that is lowest in the single crystal diamond (10), the measurement region (20) has a plurality of square regions (20a) that are continuously arranged and each have a side having a length of 0.2 mm, and an average value of transmittances in each of the plurality of square regions (20a) is measured, wherein assuming that the average value of the transmittances in one square region (20a) is defined as T 1 and the average value of the transmittances in another square region (20a) adjacent to the one square region (20a) is defined as T 2 , a relation of ((T 1 - T 2 )/((T 1 + T 2 ) /2) x 100)/0.2 ‰¤ 20 (%/mm) is satisfied throughout the measurement region (20).

公开(公告)号：EP2105239A4

公开(公告)日：2014-09-10

申请号：EP07832794

申请日：2007-11-29

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELEC HARDMETAL CORP

发明人： WATATANI KENICHI ,  FUSE KEIJI ,  KOBAYASHI YUTAKA

IPC分类号： B23K26/08 ,  B23K26/00 ,  B23K26/06 ,  B23K26/38 ,  B23K26/40 ,  B28D5/00 ,  G02B26/10

CPC分类号： G02B26/101 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/0821 ,  B23K26/38 ,  B23K26/40 ,  B23K2203/50 ,  B28D5/00

公开(公告)号：EP3170926A4

公开(公告)日：2018-07-11

申请号：EP15821748

申请日：2015-07-14

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELECTRIC HARDMETAL CORP

发明人： NISHIBAYASHI YOSHIKI ,  TATSUMI NATSUO ,  SUMIYA HITOSHI ,  UEDA AKIHIKO ,  KOBAYASHI YUTAKA

IPC分类号： C30B29/04 ,  B23B27/14 ,  B23B27/20 ,  C30B25/20

CPC分类号： C30B29/04 ,  C01B32/25 ,  C30B25/186 ,  C30B25/20

摘要： Single crystal diamond of which hardness and chipping resistance have been improved in a balanced manner, a method for manufacturing the single crystal diamond, and a tool containing the diamond are provided. Single crystal diamond contains nitrogen atoms, and a ratio of the number of isolated substitutional nitrogen atoms in the single crystal diamond to the total number of nitrogen atoms in the single crystal diamond is not lower than 0.02% and lower than 40%.

公开(公告)号：EP2636478A4

公开(公告)日：2017-08-16

申请号：EP11837815

申请日：2011-09-16

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELECTRIC HARDMETAL CORP

发明人： NAKAMAE KAZUO ,  MURASE HIROYUKI ,  YAMAMOTO KATSUKO ,  ONO MAMORU ,  TANAKA KATSUYUKI ,  SAKATA TOSHIMITSU ,  ENAMI TERUHIRO ,  KOBAYASHI YUTAKA

IPC分类号： B23P15/28 ,  B23D65/02 ,  B23K26/00 ,  B23K26/04 ,  B23K26/06 ,  B23K26/08 ,  B23K26/38 ,  B23K26/40 ,  B23K103/00

CPC分类号： B23K26/0648 ,  B23C2226/125 ,  B23C2226/315 ,  B23C2260/56 ,  B23D65/02 ,  B23K26/06 ,  B23K26/0613 ,  B23K26/064 ,  B23K26/0823 ,  B23K26/38 ,  B23K26/40 ,  B23K2203/50 ,  Y10T407/27

公开(公告)号：EP2985368A4

公开(公告)日：2016-12-14

申请号：EP14783086

申请日：2014-04-02

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELECTRIC HARDMETAL CORP

发明人： NISHIBAYASHI YOSHIKI ,  UEDA AKIHIKO ,  SUMIYA HITOSHI ,  KOBAYASHI YUTAKA ,  SEKI YUICHIRO ,  TAKAHASHI TOSHIYA

IPC分类号： C30B29/04 ,  C30B25/00 ,  C30B25/10

CPC分类号： C30B29/04 ,  C30B25/00 ,  C30B25/105

摘要： A single crystal diamond (10) is provided as a single crystal diamond into which a defect portion (11) is introduced. The defect portion (11) can be detected by a phase difference occurring when the single crystal diamond (10) is irradiated with circularly polarized light. In the single crystal diamond (10), a maximum value of average values of the phase differences measured within a measurement region (M) formed in a shape of a square having a side length of 1 mm is 30 nm or more.

公开(公告)号：EP3214208A4

公开(公告)日：2018-06-27

申请号：EP15855597

申请日：2015-10-29

申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELECTRIC HARDMETAL CORP

发明人： NISHIBAYASHI YOSHIKI ,  UEDA AKIHIKO ,  KOBAYASHI YUTAKA

IPC分类号： C30B29/04 ,  C23C16/27 ,  C30B25/02 ,  C30B25/20

CPC分类号： C30B29/04 ,  C01B32/26 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/80 ,  C23C16/27 ,  C30B25/02 ,  C30B25/205 ,  G01K11/18 ,  G02B5/208

摘要： A single-crystal diamond material has a transmittance of light with a wavelength of greater than or equal to 410 nm and less than or equal to 750 nm of less than or equal to 15% for any wavelength, and is at least either of an electrical insulator according to optical evaluation and an electrical insulator according to electrical evaluation. A criterion of the optical evaluation can be a transmittance of light with a wavelength of 10.6 µm of greater than or equal to 1%. A criterion of the electrical evaluation can be an average resistivity of greater than or equal to 1 × 10 6 ©cm. Accordingly, a single-crystal diamond material having a low transmittance of light in the entire region of the visible light region and exhibiting a black color is provided.