HK

Hirokazu Katayama

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Overall (All Time): #1,321,252 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12246292 Micro or nano porous membrane, manufacturing method of same, porous resin membrane complex, and filter element Fumihiro Hayashi, Yasuhiro Okuda 2025-03-11
10096855 Redox flow cell membrane Yasuhiro Okuda, Naoki Shimbara, Toshio Shigematsu, Yongrong Dong, Kei Hanafusa +2 more 2018-10-09
4310487 Automatic analyzer for combustible gas in oil Mitsuhiro Yamada, Toshitsugu Ishii, Yoshihiro Makino, Masashi Kamio 1982-01-12