Inventor

TSUBOI HIROAKI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “TSUBOI HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UNIVERSAL PIONEER CORP

1 patent

US4286147AAug 25, 1981

In-focus detecting device

UNIVERSAL PIONEER CORP7 citations69

PIONEER ELECTRIC CORP

1 patent

US4885733ADec 5, 1989

Method of, and system for, detecting an excessive loading condition of multiple disks in a video disk apparatus

PIONEER ELECTRIC CORP8 citations68

PIONEER ELECTRONIC CORP

1 patent

US5508991AApr 16, 1996

Tracking error correction for optical head in different modes of operation

PIONEER ELECTRONIC CORP18 citations67

NAKAMURA YOSHIMASA

1 patent

US8255447B2Aug 28, 2012

Eigenvalue decomposition apparatus and eigenvalue decomposition method

NAKAMURA YOSHIMASA1 citations41