YT

Yoshifumi TSUTAI

Ngk Spark Plug Co.: 5 patents #370 of 1,594Top 25%
📍 Tomiya, JP: #3 of 9 inventorsTop 35%
Overall (All Time): #965,609 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11060020 Wavelength conversion member Toshimitsu KIKUCHI, Takashi Abe, Ai Hayasaka 2021-07-13
10707385 Wavelength conversion member and light-emitting device Yumi Sato, Takashi Abe, Yutaka Sato 2020-07-07
10612762 Wavelength conversion member, manufacturing method therefor, and light-emitting device Yumi Sato, Takashi Abe, Yutaka Sato 2020-04-07
10590341 Wavelength conversion member, production method therefor, and light emitting device Yumi Sato, Takashi Abe, Yutaka Sato 2020-03-17
10508801 Wavelength conversion member and light-emitting device Yumi Sato, Takashi Abe, Yutaka Sato 2019-12-17