Inventor · disambiguated record
Takashi Sumiya
Also filed as: SUMIYA TAKASHI
19 granted patents·687 citations·filing 1987–2021
96Inventor score
Files withSANYO CHEMICAL IND LTD9TORAY INDUSTRIES6FUTABA IND CO LTD1HOECHST CELANESE CORP1NIPPON PRECISION CIRCUITS1
Top patents by PatentIndex Score
19 records- 0196US5380808AProcess for producing water-absorbing resinsSANYO CHEMICAL IND LTD·Filed 1991·Granted Jan 10, 1995·176 cites·9 claims
- 0288US5002986AFluid absorbent compositions and process for their preparationHOECHST CELANESE CORP·Filed 1989·Granted Mar 26, 1991·201 cites·21 claims
- 0387US4786558AComposite film and antistatic composite film comprising a swellable inorganic silicateTORAY IND LTD·Filed 1987·Granted Nov 22, 1988·49 cites·28 claims
- 0479US6303711B1Water-absorbent or water-retention material and production method thereofSANYO CHEMICAL IND LTD·Filed 2000·Granted Oct 16, 2001·16 cites·10 claims
- 0578US6130304AWater-absorbent or water-retention material and production method thereofSANYO CHEMICAL IND LTD·Filed 1997·Granted Oct 10, 2000·34 cites·19 claims
- 0678US5724915AMaterial for the treatment of pet excretion and method of producing the same materialSANYO CHEMICAL IND LTD·Filed 1996·Granted Mar 10, 1998·36 cites·17 claims
- 0777US6667133B1Gelating agent for alkaline cell and alkaline cellSANYO CHEMICAL IND LTD·Filed 2000·Granted Dec 23, 2003·20 cites·19 claims
- 0877US4908277APolyester filmTORAY INDUSTRIES·Filed 1988·Granted Mar 13, 1990·27 cites·16 claims
- 0975US5668078AWater-absorbent resin particles and the production thereofSANYO CHEMICAL IND LTD·Filed 1995·Granted Sep 16, 1997·33 cites·12 claims
- 1072US5384368AProcess for producing water absorbent resinSANYO CHEMICAL IND LTD·Filed 1994·Granted Jan 24, 1995·29 cites·9 claims
- 1165US5698308APolyester film for use of a laminate with a metal plateTORAY INDUSTRIES·Filed 1996·Granted Dec 16, 1997·20 cites·4 claims
- 1255US5591518APolyester film for use of a laminate with a metal plateTORAY INDUSTRIES·Filed 1995·Granted Jan 7, 1997·12 cites·9 claims
- 1354US7470738B2Non-aqueous absorbent and use thereofSANYO CHEMICAL IND LTD·Filed 2002·Granted Dec 30, 2008·3 cites·18 claims
- 1454US5061565AFilm for heat-sensitive mimeograph stencilTORAY INDUSTRIES·Filed 1987·Granted Oct 29, 1991·14 cites·13 claims
- 1542US7314687B2Gelling agent for alkaline cell and alkaline cellSANYO CHEMICAL IND LTD·Filed 2002·Granted Jan 1, 2008·0 cites·16 claims
- 1640US5051475APolyester-based filmTORAY INDUSTRIES·Filed 1989·Granted Sep 24, 1991·5 cites·6 claims
- 1739US12000507B2Pipe, spool forming die, and pipe manufacturing methodFUTABA IND CO LTD·Filed 2021·Granted Jun 4, 2024·0 cites·2 claims
- 1836US6101077AElectrostatic protection circuit of a semiconductor deviceNIPPON PRECISION CIRCUITS·Filed 1998·Granted Aug 8, 2000·6 cites·6 claims
- 1934US5882784AMetal-film laminateTORAY INDUSTRIES·Filed 1997·Granted Mar 16, 1999·6 cites·8 claims
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