YS

Yasuyuki Shibayama

Ricoh Company: 2 patents #386 of 1,821Top 25%
Overall (2018): #88,892 of 503,207Top 20%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9864177 Projection optical system, projection apparatus, and projection system Yohei Takano, Hibiki Tatsuno 2018-01-09
9864260 Image display apparatus and image display unit Hibiki Tatsuno, Yohei Takano 2018-01-09