MY

Masahiko Yamakawa

TC Toshiba Materials Co.: 3 patents #4 of 50Top 8%
KT Kabushiki Kaisha Toshiba: 1 patents #430 of 1,215Top 40%
TL Tsubota Laboratory: 1 patents #1 of 4Top 25%
Overall (2021): #71,070 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11094679 White light source system Noriaki Yagi, Kumpei Kobayashi 2021-08-17
11084979 Europium-activated alkaline-earth chloroapatite phosphor and light-emitting device thereof Naotoshi Matsuda, Tatsunori Itoga, Hirofumi Takemura, Yasuhiro Shirakawa 2021-08-10
11007375 Light source for myopia prevention article and method of using light source for myopia prevention article Hidemasa Torii, Toshihide Kurihara, Kazuo Tsubota 2021-05-18