Inventor · disambiguated record
Shigeru Sawayama
Also filed as: SAWAYAMA SHIGERU
17 granted patents·386 citations·filing 1976–1995
95Inventor score
Top patents by PatentIndex Score
17 records- 0190US4808683AVinylamine copolymer, flocculating agent using the same, and process for preparing the sameMITSUBISHI CHEM IND·Filed 1987·Granted Feb 28, 1989·58 cites·5 claims
- 0289US4567300AProcess for producing N-substituted formamidesMITSUBISHI CHEM IND·Filed 1985·Granted Jan 28, 1986·31 cites·19 claims
- 0388US4158726AProcess for preparing bead polymersMITSUBISHI CHEM IND·Filed 1977·Granted Jun 19, 1979·70 cites·18 claims
- 0484US4957977AVinylamine copolymer, flocculating agent etc.MITSUBISHI CHEM IND·Filed 1990·Granted Sep 18, 1990·49 cites·20 claims
- 0583US5037927AVinylamine copolymer and process for producing sameMITSUBISHI CHEM IND·Filed 1988·Granted Aug 6, 1991·48 cites·9 claims
- 0682US5064909AVinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the sameMITSUBISHI CHEM IND·Filed 1990·Granted Nov 12, 1991·30 cites·9 claims
- 0768US5554792AN-vinylformamide compositionsMITSUBISHI CHEM IND·Filed 1995·Granted Sep 10, 1996·10 cites·16 claims
- 0859US5281340ACationic polymer flocculating agentsMITSUBISHI CHEM IND·Filed 1992·Granted Jan 25, 1994·21 cites·38 claims
- 0959US4783270ACoagulant for minute mineral particles in suspension and method for coagulating thereofMITSUBISHI CHEM IND·Filed 1987·Granted Nov 8, 1988·22 cites·5 claims
- 1047US5512645ALactam ring containing polymerMITSUBISHI CHEM CORP·Filed 1994·Granted Apr 30, 1996·8 cites·15 claims
- 1144US5389203APaper-making additives comprising cationic polymersMITSUBISHI CHEM IND·Filed 1993·Granted Feb 14, 1995·10 cites·43 claims
- 1242US5320712AMethod for sizing of paperMITSUBISHI CHEM IND·Filed 1992·Granted Jun 14, 1994·9 cites·2 claims
- 1342US4824913AProcess for preparing water-soluble polymerMITSUBISHI CHEM IND·Filed 1987·Granted Apr 25, 1989·7 cites·12 claims
- 1438USRE34713EVinylamine copolymer flocculating agent etc.MITSUBISHI CHEM IND·Filed 1992·Granted Aug 30, 1994·5 cites·20 claims
- 1534USRE34903EVinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the sameMITSUBISHI CHEM IND·Filed 1993·Granted Apr 11, 1995·2 cites·9 claims
- 1629US5494746AAcrylic fiber and process for producing the sameMITSUBISHI CHEM IND·Filed 1994·Granted Feb 27, 1996·5 cites·5 claims
- 1726US4074041AProcess for preparing solid water soluble polymersMITSUBISHI CHEM IND·Filed 1976·Granted Feb 14, 1978·1 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Shigeru Sawayama 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 →