YO

Yoshifumi Ohba

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #1,998,259 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9453659 Reaction material formed body and heat storage and release unit Yasutomo Aman, Yohei Shiren, Masahiro Masuzawa, Hiroko Ohkura 2016-09-27
9243179 Reaction material and chemical heat pump Yohei Shiren, Masahiro Masuzawa, Hiroko Ohkura, Yasutomo Aman 2016-01-26