TC

Toru Chiba

PE Pentax: 2 patents #42 of 186Top 25%
Overall (1997): #21,584 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5661712 Light phase modulating device and optical data recording and reproducing apparatus — 1997-08-26
5643504 Method of making a composite glass and resin optical element with an aspheric surface — 1997-07-01