TK

Takashi Kubota

Ricoh Company: 3 patents #117 of 1,326Top 9%
Overall (2021): #61,175 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11209632 Projection optical system and image projection device 2021-12-28
11134192 Optical system and image projection apparatus including an interface that transmits or reflects light Kohei Ushio 2021-09-28
11042013 Projection optical system and image projection device Hibiki Tatsuno 2021-06-22