YO

Yoshinao Okumoto

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Overall (All Time): #1,054,605 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5685229 Railway car body structures and method of making them Mamoru Ohara, Morishige Hattori, Masato Okazaki, Michifume Takeichi, Katsutoshi Horihata +1 more 1997-11-11
5433151 Railway car body structures and methods of making them using welded honeycomb panels connected in an edge to edge relation Mamoru Ohara, Morishige Hattori, Masato Okazaki, Michifumi Takeichi, Katsutoshi Horihata +1 more 1995-07-18
4982583 Air conditioner for railway vehicles Toshiharu Matsuda, Nobuyuki Fugiyama, Yoshichika Fukushima 1991-01-08
4905478 Air conditioner for railway vehicles Toshiharu Matsuda, Nobuyuki Fugiyama, Yoshichika Fukushima 1990-03-06
4870833 Car air conditioning apparatus and controlling method therefor Toshiharu Matsuda 1989-10-03