RY

Ryuji Yukawa

JE Jx Nippon Oil & Energy: 1 patents #195 of 416Top 50%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Overall (All Time): #2,021,817 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8945784 Hydrogen production apparatus and fuel cell system using the same Yasushi Sato, Emi Kato, Takaya Matsumoto, Masataka Kadowaki, Takuya Kajita 2015-02-03
7052787 Solid high polymer type fuel cell power generating device Osamu Tajima, Katsuya Oda, Tatsuji Hatayama, Taketoshi Ouki, Akira Fuju +7 more 2006-05-30