Inventor · disambiguated record
Tsukasa Ogawa
Also filed as: OGAWA TSUKASA
6 granted patents·45 citations·filing 1990–2001
80Inventor score
Top patents by PatentIndex Score
6 records- 0172US6350874B1Method for producing triethylenediamines and piperazinesTOSOH CORP·Filed 2000·Granted Feb 26, 2002·7 cites·5 claims
- 0251US5140157ADouble beam scan type optical apparatusHITACHI KOKI KK·Filed 1991·Granted Aug 18, 1992·14 cites·6 claims
- 0349US5402409AOptical recording apparatus and method for adding information in a sub-scanning direction and for deflecting a light beam to an optimum sub-scanning recording positionHITACHI KOKI KK·Filed 1993·Granted Mar 28, 1995·15 cites·7 claims
- 0441US6531601B2Molded catalyst for production of triethylenediamine, method for its production, and method for producing triethylenediamineTOSOH CORP·Filed 2001·Granted Mar 11, 2003·0 cites·17 claims
- 0537US5182596ADevice for measuring surface potentials at photosensitive body and electrostatic recording apparatus using said deviceHITACHI KOKI KK·Filed 1991·Granted Jan 26, 1993·8 cites·7 claims
- 0630US5150648AMethod and apparatus for detecting print-termination in line printerHITACHI KOKI KK·Filed 1990·Granted Sep 29, 1992·1 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →