Takashi Ryu |
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| Date | Document Name & Details | Documents |
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| 16 July 2013 grant date | Bonding Agent Comprising Spherical Sintered Metal Oxide Powder United States Patent US 8,486,328 Makoto Ohmori, Toshiyuki Nakamura, and Takashi Ryu for NGK Insulators, Ltd. |  PDF - 4.8MB - 20 pages |