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Yohei IKEBE — 4 Patents in 2021

HOHoya: 4 patents #7 of 58Top 15%
Tokyo, JP: #850 of 13,453 inventorsTop 7%
Overall (2021): #36,827 of 548,734Top 7%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11187972 Reflective mask blank, method of manufacturing reflective mask and method of manufacturing semiconductor device Tsutomu Shoki 2021-11-30
11131921 Method for manufacturing reflective mask blank, and method for manufacturing reflective mask Tsutomu Shoki, Kazuhiro Hamamoto 2021-09-28
11003068 Reflective mask blank, reflective mask and method of manufacturing semiconductor device Tsutomu Shoki, Takahiro Onoue, Hirofumi Kozakai 2021-05-11
10921705 Mask blank substrate, substrate with multilayer reflective film, reflective mask blank, reflective mask and method of manufacturing semiconductor device Tsutomu Shoki 2021-02-16

Nearby-Ranked Inventors

Yota Ito4
Yoshiyuki Ishiguri4
Yoshiki Inoue4
Yoshinori Inagawa4
Young Kyoon Im4
Yoshiyuki Ikebe4
Yoichi Iihoshi4
Yoon-suk Hyun4
Yoo-Sang Hwang4