Inventor · Yachiyo, JP

Umeko Kato

1Patents
1h-index
4Co-inventors
25Inventor score

Filing activity: Jul 12, 1994 → Jul 12, 1994

Most-cited inventions

PatentTitleAreaCited byStatus
US5590855A Train detection device for railroad models and train crossing control apparatus utilizing the train detection device Emerging Cross-Sectional Technologies 21 Expired

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