Akio Hirane — 3 Patents at Unknown

Akio Hirane has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1992 and the most recent in February 1999. Akio Hirane ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Akio Hirane in Ebetsu, JP.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5866868	Spot welding apparatus	—	1999-02-02
5272306	Spot welding apparatus and method	—	1993-12-21
5120924	Welding method for coated metal articles	—	1992-06-09