Inventor · disambiguated record
Homu Takayama
Also filed as: TAKAYAMA HOMU
18 granted patents·4 pending applications·294 citations·filing 1997–2007
95Inventor score
Files withPENTAX CORP7ASAHI SEIMITSU KK5PENTAX IND INSTR CO LTD4PENTAX PREC CO LTD4ASAHI OPTICAL CO LTD1
Top patents by PatentIndex Score
22 records- 0193US7503123B2Surveying apparatusPENTAX IND INSTR CO LTD·Filed 2007·Granted Mar 17, 2009·56 cites·5 claims
- 0283US6765653B2Electronic distance meterPENTAX CORP·Filed 2001·Granted Jul 20, 2004·56 cites·17 claims
- 0374US6624402B2Surveying instrument, surveying instrument having AF function, surveying instrument having PF mechanism, and surveying instrument having multiple-focus functionPENTAX PREC CO LTD·Filed 2001·Granted Sep 23, 2003·18 cites·26 claims
- 0471US6480266B2Autofocus distance-measuring optical systemASAHI OPTICAL CO LTD·Filed 2001·Granted Nov 12, 2002·13 cites·13 claims
- 0566US7669340B2Surveying apparatusPENTAX IND INSTR CO LTD·Filed 2007·Granted Mar 2, 2010·5 cites·20 claims
- 0666US5936736AFocusing method and apparatus for a surveying instrument having an AF function, and arrangement of an AF beam splitting optical system thereinASAHI SEIMITSU KK·Filed 1997·Granted Aug 10, 1999·40 cites·8 claims
- 0764US6384944B1Integral transmitter-receiver optical communication apparatusASAHI SEIMITSU KK·Filed 1999·Granted May 7, 2002·35 cites·11 claims
- 0863USD389418SElectronic measurement deviceASAHI SEIMITSU KK·Filed 1997·Granted Jan 20, 1998·12 cites·1 claims
- 0960USD447066SMeasurement surveying deviceASAHI SEIMITSU KK·Filed 2000·Granted Aug 28, 2001·11 cites·1 claims
- 1053US6556283B2Electronic distance meterPENTAX CORP·Filed 2001·Granted Apr 29, 2003·10 cites·23 claims
- 1152US6945657B2Surveying instrumentPENTAX CORP·Filed 2001·Granted Sep 20, 2005·7 cites·8 claims
- 1251US6677568B2Surveying instrument having a phase-difference detection type focus detecting devicePENTAX CORP·Filed 2001·Granted Jan 13, 2004·3 cites·7 claims
- 1349US6891141B2Surveying instrument having an optical distance meter and an autofocus system, and a surveying instrument having a detachable autofocus systemPENTAX CORP·Filed 2004·Granted May 10, 2005·7 cites·15 claims
- 1448US6747733B2Electronic distance meterPENTAX CORP·Filed 2002·Granted Jun 8, 2004·6 cites·55 claims
- 1546US6734410B2Surveying instrument having an optical distance meter and an autofocus system, and a surveying instrument having a detachable autofocus systemPENTAX PREC CO LTD·Filed 2001·Granted May 11, 2004·4 cites·7 claims
- 1645US2005200949A1Surveying instrumentPENTAX CORP·Filed 2005·Application pending·0 cites
- 1744US6542225B2Surveying machine automatically adjusting optical axisPENTAX PREC CO LTD·Filed 2002·Granted Apr 1, 2003·3 cites·14 claims
- 1843US2008018880A1Surveying apparatusPENTAX IND INSTR CO LTD·Filed 2007·Application pending·0 cites
- 1943US2008123903A1Surveying apparatusPENTAX IND INSTR CO LTD·Filed 2007·Application pending·0 cites
- 2041US2008069406A1Surveying ApparatusC O PENTAX IND INSTR CO LTD·Filed 2007·Application pending·0 cites
- 2134US6701093B1Integral transmitter-receiver optical communication apparatus and a crosstalk preventive device thereforPENTAX PREC CO LTD·Filed 1999·Granted Mar 2, 2004·7 cites·6 claims
- 2229US6141144AOptical axis correcting systemASAHI SEIMITSU KK·Filed 1999·Granted Oct 31, 2000·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →