YU

Yoshiyuki Ujino

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
Overall (All Time): #1,654,912 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5325764 Coffee extractor Toshio Nakamura, Yukitoshi Kunihiro, Masaaki Sirakawa, Hideo Obata 1994-07-05
5121464 Steamer with controlled pressure Touru Hanada 1992-06-09
4656763 Steam iron with steam surge generation capability Kazuhisa Kawasaki, Takahisa Tsuji, Tsuneo Saeki 1987-04-14