Patent assignee · JP · COMPANY

Ohtsuka, Masahisa

1Patents
0Active
1Granted
22Portfolio score

Filing activity: Feb 28, 1992 → Feb 28, 1992

Most-cited patents

PatentTitleAreaCited byStatus
US5261245A Method for making ice slab and/or artificial snow Emerging Cross-Sectional Technologies 6 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.