Inventor · disambiguated record
Eietsu Hasegawa
Also filed as: HASEGAWA EIETSU
3 granted patents·72 citations·filing 1987–2002
74Inventor score
Technology areasH05K
Files withSENJU METAL INDUSTRY CO3
Top patents by PatentIndex Score
3 records- 0177US4740252ASolder paste for electronic partsSENJU METAL INDUSTRY CO·Filed 1987·Granted Apr 26, 1988·38 cites·7 claims
- 0270US6474537B1Soldering method using a Cu-containing lead-free alloySENJU METAL INDUSTRY CO·Filed 2001·Granted Nov 5, 2002·23 cites·11 claims
- 0357US6705509B2Method of recovering lead-free solder from printed circuit boardsSENJU METAL INDUSTRY CO·Filed 2002·Granted Mar 16, 2004·11 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →