RS

Ryoko Sakiyama

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
📍 Abiko, JP: #139 of 277 inventorsTop 55%
Overall (All Time): #1,622,670 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6247331 Absorption refrigerator and the method of producing the same Akira Nishiguchi, Tadakatsu Nakajima, Tomihisa Ohuchi 2001-06-19
6233968 Absorption refrigerating machine Akira Nishiguchi, Tomihisa Ohuchi, Michihiko Aizawa 2001-05-22
6122930 Absorption refrigerating machine Akira Nishiguchi, Tomihisa Ohuchi, Michihiko Aizawa 2000-09-26