Inventor · disambiguated record
Hiroyoshi Hamanaka
Also filed as: HAMANAKA HIROYOSHI
8 granted patents·2 pending applications·51 citations·filing 1978–2020
85Inventor score
Files withHAMANAKA HIROYOSHI3BORON LABORATORY CO LTD2MITSUBISHI PETROCHEMICAL CO2TOHO CHEM IND CO LTD1TOHO CHEMICAL IND CO LTD1
Top patents by PatentIndex Score
10 records- 0178US7229561B1Method of in-pipe activation of running water and in-pipe activator for running water as well as method of maintaining body temperature by way of promoting blood flowHAMANAKA HIROYOSHI·Filed 2004·Granted Jun 12, 2007·19 cites·12 claims
- 0253US2020308327A1Antistatic Material, Method for Manufacturing the Same, and Antistatic Method Using the SameBORON LABORATORY CO LTD·Filed 2020·Application pending·0 cites
- 0346US4385184ACationic surface active agentsHAMANAKA HIROYOSHI·Filed 1981·Granted May 24, 1983·5 cites·11 claims
- 0439US4662558ASpatter preventing methodHAMANAKA HIROYOSHI·Filed 1985·Granted May 5, 1987·8 cites·10 claims
- 0537US4192759AAutomotive brake fluid compositions including semipolar borates and heteroboratesTOHO CHEMICAL IND CO LTD·Filed 1978·Granted Mar 11, 1980·3 cites·9 claims
- 0634US4346087AAntibacterial surface active agent containing azaalkenelactamTOHO CHEM IND CO LTD·Filed 1980·Granted Aug 24, 1982·8 cites·21 claims
- 0732US2016362539A1Antistatic agent, molded article comprising an insulating polymer material, and method of producing the molded articleBORON LABORATORY CO LTD·Filed 2015·Application pending·0 cites
- 0831US5002991APermanent antistatic resin compositionMITSUBISHI PETROCHEMICAL CO·Filed 1989·Granted Mar 26, 1991·2 cites·11 claims
- 0929US6190703B1Subliming propolis solid composition and process for the preparation thereofFiled 1998·Granted Feb 20, 2001·5 cites·7 claims
- 1029US5002992APermanent antistatic resin compositionMITSUBISHI PETROCHEMICAL CO·Filed 1989·Granted Mar 26, 1991·1 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Hiroyoshi Hamanaka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →