MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202647098661 A) filed by Sumitomo Electric Industries, Ltd.; and A. L. M. T. Corp. on August 14, 2026, for Single Crystal Diamond And Tool.
Inventors include Muto, Haruka; Nishiyama, Norimasa; Kobayashi, Yutaka; Yamada, Hiroki; Kuramoto, Kohei; Tokunaga, Mari; and Kimura, Kohichiroh.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: Provided is a single crystal diamond in which the content of nitrogen atoms based on the number of atoms is 1 ppm to 2,000 ppm inclusive. The surface of the single crystal diamond includes a first region, the arithmetic mean height Sa, which is defined in JIS B 0681-2...