Inventor
OHTA HAJIME
17 patents
⚠️ This page may combine multiple inventors who share the name “OHTA HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JSP CORP
6 patentsUS7863343B2Jan 4, 2011
Expandable polylactic acid resin particles, expanded polylactic acid resin beads and molded article obtained from expanded polylactic acid resin beads
JSP CORP9 citations82
US11732101B2Aug 22, 2023
Polypropylene-based resin expanded beads and polypropylene-based resin expanded beads molded article
JSP CORP2 citations63
US11904579B2Feb 20, 2024
Molded article of polypropylene-based resin foamed particle molded body, polypropylene-based resin foamed particle, and method for producing same
JSP CORP0 citations59
US12441860B2Oct 14, 2025
Polypropylene-based resin expanded bead, method for producing same, and molded article of polypropylene-based resin expanded beads
JSP CORP0 citations56
US12202951B2Jan 21, 2025
Modified expanded bead and foam molded article of expanded beads
JSP CORP0 citations49
US12240956B2Mar 4, 2025
Expanded bead and method for producing the same
JSP CORP0 citations45
FUJITSU LTD
3 patentsUS4670751AJun 2, 1987
Eraser for electronic blackboard
FUJITSU LTD101 citations91
US4798969AJan 17, 1989
Power feed system in transmission line between terminals of three-terminal station
FUJITSU LTD16 citations71
US4564078AJan 14, 1986
Apparatus for storing felt pens for an electronic board
FUJITSU LTD13 citations69
NIPPON MUSICAL INSTRUMENTS MFG
3 patentsUS4159493AJun 26, 1979
Combined magnetic head having recording and playback cores
NIPPON MUSICAL INSTRUMENTS MFG7 citations73
US4087761AMay 2, 1978
Audio power amplifier
NIPPON MUSICAL INSTRUMENTS MFG27 citations73
US4333114AJun 1, 1982
Recording circuit employing AC biasing system
NIPPON MUSICAL INSTRUMENTS MFG1 citations51