OY

Osamu Yokoyama

SE Seiko Epson: 3 patents #146 of 1,264Top 15%
1L 138 East Lcd Advancements Limited: 1 patents #1 of 5Top 20%
Overall (2021): #42,717 of 548,734Top 8%
4
Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11067804 Virtual image display device 2021-07-20
10989925 Light flux diameter expanding element and image display device 2021-04-27
10901133 Illuminating device and liquid crystal display apparatus 2021-01-26
10884244 Display apparatus Fumika Yamada, Masatoshi Yonekubo 2021-01-05