RH

Ryoichi Hagiwara

YC Yanmar Holdings Co.: 8 patents #36 of 636Top 6%
YC Yanmar Power Technology Co.: 2 patents #50 of 202Top 25%
NT Nagoya Institute Of Technology: 1 patents #52 of 159Top 35%
Overall (All Time): #499,960 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
11428177 Engine device Kazuteru TOSHINAGA, Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi 2022-08-30
11111866 Engine device Kazuteru TOSHINAGA, Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi 2021-09-07
10690069 Engine device Kazuteru TOSHINAGA, Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi 2020-06-23
10393035 Engine device Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi 2019-08-27
10378461 Engine device Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi 2019-08-13
10267254 Engine device Osamu Yamagishi, Naoya Ikeda 2019-04-23
10221796 Engine device Osamu Yamagishi, Naoya Ikeda 2019-03-05
10094309 Engine device Osamu Yamagishi 2018-10-09
9476620 Cogeneration system Toru Takemoto, Takahiro Kyakuno, Megumi Suzuki 2016-10-25
9407070 Ignition system and ignition plug that reduces the required voltage to sustain an engine, while improving ignition performance and combustability Toru Takemoto, Kazuteru TOSHINAGA, Masahiro Furutani 2016-08-02