TO

Tsutomu Okuyama

KA Kaneka: 3 patents #437 of 1,525Top 30%
NS Nippon Steel: 2 patents #1,308 of 4,423Top 30%
Canon: 2 patents #12,681 of 19,416Top 70%
KK Kanegafuchi Kagaku Kogyo: 1 patents #368 of 691Top 55%
UC Usui Co.: 1 patents #15 of 34Top 45%
📍 Kawaguchi, JP: #71 of 473 inventorsTop 20%
Overall (All Time): #613,095 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12000364 Steel pipe for fuel injection pipe and fuel injection pipe using the same Tatsuya Masuda, Tsugumi Yamazaki, Taizo Makino, Katsunori Nagao 2024-06-04
10995394 Steel bar for downhole member, and downhole member Daisuke Matsuo, Takuji Nakahata, Hisashi Amaya, Hideki Takabe 2021-05-04
7763348 Cellulosic particles, spherical object comprising cross-linked polymer particles, and adsorbent for body fluid purification Kouji Fujita, Kouichiro Tanaka, Satoshi Takata 2010-07-27
6599620 Cellulosic particles, spherical object comprising cross-linked polymer particles, and adsorbent for body fluid purification Kouji Fujita, Kouichiro Tanaka, Satoshi Takata 2003-07-29
6337368 Lipoprotein adsorbent and lipoprotein adsorber made with the use of the same Akira Kobayashi 2002-01-08
4744899 Sterilization of adsorbent and column having improved storability including sterilized adsorbent for use in extracorporeal circulation treatment Nobutaka Tani, Shigeo Furuyoshi 1988-05-17
D266853 Desk-top electronic calculator Eiichi Yoshioka 1982-11-09
D260777 Combined electronic calculator and clock Eiichi Yoshioka 1981-09-15