TT

Tadashi Tomonaga

HO Hoya: 4 patents #305 of 1,290Top 25%
H( Hoya Glass Disk (Thailand): 4 patents #2 of 14Top 15%
WP Wd Media (Singapore) Pte.Ltd.: 1 patents #27 of 41Top 70%
Overall (All Time): #1,006,986 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8895165 Method of manufacturing a glass substrate for a magnetic disk, glass substrate for a magnetic disk, method of manufacturing a magnetic disk, and magnetic disk Kenichi Nishimori 2014-11-25
8640497 Method of manufacturing glass substrate for magnetic disk and system for manufacturing glass substrate for magnetic disk Ryuuichi Kashima, Hideki Isono, Shinji Eda, Tomotaka Yokoyama, Kraisorn Phandon +1 more 2014-02-04
8605388 Magnetic recording medium with guard layer between auxiliary and magnetic recording layers and manufacturing method of the magnetic recording medium Junichi Yasumori, Yoshiaki Sonobe 2013-12-10
8567044 Method of manufacturing a magnetic disk Hiroshi Takeda, Ken-ichi Nishimori, Tomotaka Yokoyama 2013-10-29
8033008 Method for supporting manufacture of a magnetic disk Hiroshi Takeda, Ken-ichi Nishimori, Tomotaka Yokoyama 2011-10-11