RK

Ryoji KAWAI

HI Hitachi: 2 patents #141 of 1,165Top 15%
HC Hitachi Industrial Equipment Systems Co.: 1 patents #30 of 92Top 35%
Overall (2021): #65,055 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

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