MH

Masayoshi Hirayama

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #2,320,421 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5072473 Full-automated washer Sizuo Thuruta, Yoshiaki Takeda, Isao Hiyama, Kenichi Kubo, Toshikazu Ohonishi +8 more 1991-12-17
4955213 Full automatic electric washing machine having an auto-off power source structure Hiroshi Ohsugi, Hiroyuki Toshimitsu, Toshiyasu Kamano, Tamotu Shikamori 1990-09-11