Inventor

HOSAKA TOSHIHIKO

5 patents

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

UNIVERSAL PIONEER CORP

2 patents

US4475182AOct 2, 1984

Focus servo control system for automatically adjusting a relative distance between an objective lens unit and a recording surface of an optical recording medium

UNIVERSAL PIONEER CORP44 citations89

US4286147AAug 25, 1981

In-focus detecting device

UNIVERSAL PIONEER CORP7 citations69

PIONEER ELECTRONIC CORP

1 patent

US4245245AJan 13, 1981

Interactive CATV system

PIONEER ELECTRONIC CORP403 citations96

HOSAKA TOSHIHIKO

1 patent

US4338682AJul 6, 1982

Tracking servo system of video disc player

HOSAKA TOSHIHIKO43 citations88

IHI CORP

1 patent

US12565843B2Mar 3, 2026

Composite blade

IHI CORP0 citations39