YS

Yasuyuki Shibayama

Ricoh Company: 2 patents #318 of 1,487Top 25%
Overall (2020): #105,751 of 565,922Top 20%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10606042 Magnification optical system Hibiki Tatsuno, Kiichiro Nishina, Takanobu Osaka, Makoto Hirakawa 2020-03-31
10585269 Projection optical system, projection apparatus, and projection system Yohei Takano, Hibiki Tatsuno 2020-03-10