RK

Ryoji KAWAI

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
HC Hitachi Industrial Equipment Systems Co.: 1 patents #318 of 550Top 60%
Overall (All Time): #1,428,086 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11149734 Fluid machine Kotaro Chiba, Masahiko Takano, Toshikazu Harashima, Kosuke SADAKATA, Kentaro Yamamoto +3 more 2021-10-19
10995756 Air compressor Masanao KOTANI, Takeshi Tsuchiya, Kotaro Chiba, Minako KANADA, Sachio Sekiya 2021-05-04
10920760 Air compressor having an oil separator, an oil cooler, first and second evaporators, and wherein intake air and the oil are simultaneously cooled in the first and second evaporators Masanao KOTANI, Takeshi Tsuchiya, Sachio Sekiya 2021-02-16