Inventor · disambiguated record
Keiichi Maruta
Also filed as: MARUTA KEIICHI
12 granted patents·2 pending applications·512 citations·filing 1974–2006
93Inventor score
Top patents by PatentIndex Score
14 records- 0197US4370370AThermosensitive recording adhesive labelRICOH KK·Filed 1981·Granted Jan 25, 1983·182 cites·16 claims
- 0294US4388362AReleased heat-sensitive recording paperRICOH KK·Filed 1981·Granted Jun 14, 1983·77 cites·10 claims
- 0390US4929590AThermosensitive recording materialRICOH KK·Filed 1989·Granted May 29, 1990·45 cites·11 claims
- 0490US4424245AThermosensitive-recording-type label sheetRICOH KK·Filed 1982·Granted Jan 3, 1984·46 cites·10 claims
- 0585US4551738AThermosensitive recording materialRICOH KK·Filed 1984·Granted Nov 5, 1985·34 cites·15 claims
- 0683US4954171AComposite alloy steel powder and sintered alloy steelKAWASAKI STEEL CO·Filed 1988·Granted Sep 4, 1990·40 cites·15 claims
- 0782US5457080AThermal recording labelRICOH KK·Filed 1994·Granted Oct 10, 1995·28 cites·13 claims
- 0881US4444819AThermosensitive recording materialRICOH KK·Filed 1982·Granted Apr 24, 1984·35 cites·19 claims
- 0956US4011353AApparatus for forming a uniform liquid film on a rollerRICOH KK·Filed 1974·Granted Mar 8, 1977·7 cites·10 claims
- 1052US4149485AApparatus for forming a uniform liquid film on a rollerRICOH KK·Filed 1976·Granted Apr 17, 1979·7 cites·7 claims
- 1146US2008017283A1Steel For Machine Structural Use With Excellent Strength, Ductility, And Toughness And Method For Producing The SameMARUTA KEIICHI·Filed 2006·Application pending·0 cites
- 1244US4857502AThermosensitive recording materialRICOH KK·Filed 1987·Granted Aug 15, 1989·8 cites·6 claims
- 1343US4939116AThermosensitive recording materialRICOH KK·Filed 1989·Granted Jul 3, 1990·3 cites·4 claims
- 1443US2008264524A1High-Strength Steel and Metal Bolt Excellent In Character of Delayed FractureMARUTA KEIICHI·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →