Inventor

SUGIYAMA TOSHINORI

JP96 patents

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

SUGIYAMA TOSHINORI

MAXELL LTD

Image projection apparatus

Image projection apparatus

Head-up display apparatus

In-vehicle information display system and information display apparatus

Head-up display apparatus

Information display device

Image projection apparatus

Image projection apparatus

Image projection apparatus

Information display apparatus

Information display apparatus

In-vehicle information display system and information display apparatus

Information display apparatus

Vehicle

Image projection apparatus

Head up display device and image display apparatus therefor

Image projection apparatus

Headlight apparatus

Image projection apparatus configured to project an image on a road surface

Information display apparatus

Information display device

Image projection apparatus

LED light source device and electronic device using the same

Optical device and direction display device

Optical device and direction display device

Road sign projector and vehicle lamp

Optical device and direction display device

Information display apparatus

Light source device and electronic device

Image projection apparatus

HITACHI MAXELL

Optical recording medium and optical recording device

Magnetic head capable of generating multi-stepped external magnetic fields for magneto-optical recording device

Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable member

Magneto-optical recording medium capable of recording multiple value signals

Magneto-optical recording medium having a plurality of magnetic layers

Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable member

Optical information recording/reproducing system including novel tracking system

Optical recording medium

Optical recording disc

Magneto-optical head having heat sink layer

Ventilation arrangement for use in an optical recording disc

Light transmission device and apparatus including light transmission device

Optical recording medium with solid protective layer having self-lubricating property

Disc cartridge having an opening/closing slider mechanism

Information recording disc

HITACHI HIGH TECH CORP

XY stage, head carriage and tester of magnetic head or magnetic disk

Magnetic head test method and magnetic head tester

HITACHI HIGH TECH FINE SYSTEMS CORP

Inspection method and its apparatus for thermal assist type magnetic head element

(unassigned)

Rotary stamp

HITACHI ELECTR ENG

Apparatus for measuring the flying height of magnetic heads using a single-crystal sapphire disc