Inventor · Hiratsuka, JP

Yukihiro Tsuda

26Patents
12h-index
24Co-inventors
81Inventor score

Filing activity: Aug 6, 1992 → Jun 10, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US6005965A Inspection apparatus for semiconductor packages Physics 47 Expired
USD417047S Electric vacuum cleaner General 44 Expired
US5821497A Laser marking system and laser marking method Performing Operations; Transporting 35 Expired
US5309273A Yag laser mask marker Physics 33 Expired
USD496513S1 Combined electric washing machine and clothes drier General 32 Expired
USD422763S Electric vacuum cleaner General 30 Expired
USD380644S Microwave oven General 28 Expired
USD515256S1 Combined washing machine and drying machine General 27 Expired
USD426357S Electric vacuum cleaner General 20 Expired
USD563335S1 Television receiver General 19 Expired
US5532712A Drive circuit for use with transmissive scattered liquid crystal display device Physics 18 Expired
USD568845S1 Television receiver General 12 Expired
USD556708S1 Television receiver General 9 Expired
US5920481A IC package processing and measuring method and system therefor Electricity 9 Expired
US8810364B2 System for monitoring component of operating machine Physics 6 Active
US8830031B2 System for monitoring component of operating machine Physics 6 Active
USD445971S Combined electric washing machine and clothes drier General 6 Expired
USD422762S Electric washing machine General 5 Expired
USD568267S1 Television receiver General 5 Expired
US5663826A Transmission type liquid crystal mask marker Performing Operations; Transporting 4 Expired
US5896163A Laser liquid crystal marker and method for judging deterioration of liquid crystal Performing Operations; Transporting 4 Expired
US9334820B2 Working machine component monitoring system Physics 3 Active
US8854183B2 System for monitoring component of operating machine Physics 3 Active
US5734145A Laser marking method using laser heated liquid crystal mask Performing Operations; Transporting 3 Expired
US5726673A Liquid crystal display for laser marker Physics 2 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.