Sumio Ayusawa — 4 Patents at Unknown

Sumio Ayusawa has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in September 2002. Sumio Ayusawa ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Sumio Ayusawa in Utsunomiya, JP.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
PP12928	Shiitake mushroom plant named ‘HS607’	Sadayuki Inoue, Shigeo Takano, Katsumasa Eda, Takahiro Yamauchi	2002-09-10
6367191	Method of sawdust-based cultivation of shiitake (Cortinellus shiitake) and a cultivation water tank used for the method	Sadayuki Inoue, Katsumasa Eda	2002-04-09
6334274	Method of sawdust-based cultivation shitake (Cortinellus shitake)	Sadayuki Inoue, Katsumasa Eda	2002-01-01
PP7339	Shiitake mushroom plant named `Hokken 601`	Sadayuki Inoue	1990-09-25

Sumio Ayusawa — 4 Patents

Issued Patents All Time

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