HN

Hideo NAKAOKA

YA Yamashin-Filter: 3 patents #9 of 23Top 40%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #1,185,760 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10441902 Strainer Takazumi Tange, Masanori Wakabayashi 2019-10-15
10058801 Filter with diverse shaped and dimensioned protrusions formed on an end plate of its cylindrically shaped filter material Jiro Inoue 2018-08-28
9987570 Filter element and filtering device Meiho Taku 2018-06-05
4414470 Pupil divisional focusing position detection apparatus using lenticula lens 1983-11-08