HN

Hiroshi Nagayama

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
📍 Hitachinaka, JP: #850 of 2,447 inventorsTop 35%
Overall (All Time): #972,270 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10657417 Person information display apparatus, a person information display method, and a person information display program 2020-05-19
10639224 Message display apparatus, a message display method, and a message display program 2020-05-05
4757477 Dual-port semiconductor memory device Fumio Baba 1988-07-12
4608353 High-alumina refractory for use in non-ferrous metal melting furnace 1986-08-26
4383044 Slaking-resistant calcia refractory 1983-05-10