YK

Yoshifumi Kubo

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
NC Nippon Oil & Fats Co.: 1 patents #173 of 409Top 45%
Overall (All Time): #1,259,186 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7065968 Steam turbine Masaki Takahashi, Akitaka Tateishi, Katsutoshi Higuma, Akio Umino, Yasuhiro Oda 2006-06-27
6536203 Gas turbine installation Tomoaki Kamatani, Akitaka Tateishi, Katsutoshi Higuma 2003-03-25
5213584 Formal compounds, fuel oil additives, and fuel oil compositions Hiroumi Izaiku, Shin-ichi Akimoto, Takaharu Ishizaki, Tohru Yasukohchi 1993-05-25
4920276 Heat-and-electricity supply system Akitaka Tateishi, Tadao Arakawa, Masaru Kurosawa, Yoji Nagai 1990-04-24