Inventor

YAMADA HISASHI

JP135 patents

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

YAMADA HISASHI

TOSHIBA KK

Copy protection apparatus and information recording medium used in this copy protection apparatus

Contents managing method and contents managing apparatus

Optical disk having electronic watermark, reproducing apparatus thereof and copy protecting method using the same

Copy protection apparatus and information recording medium used in this copy protection apparatus

Information recording medium and method of manufacturing resinous substrate for use in the recording medium

Information recording medium, recording apparatus, information transmission system, and decryption apparatus

Digital data transmitting method

Recording/reproducing optical head apparatus compatible with different optical media

Reproduction device for optical disks

Optical head used for recording on optical recording medium having various thicknesses, warpage and the like

Amplifier circuit

Copy-guard system and information recording medium used in the same system

Digital watermark embedding method and apparatus, and digital watermark

Device interconnect system using analog line

Digital watermark embedding method and apparatus, and digital watermark

Recording medium for recording data, reproducing apparatus for reproducing data recorded on recording medium, and data reproducing system for reproducing data recorded on recording medium via network or the like

Multi-body multi-purpose information processing apparatus

Noise reduction system for optical record and reproduction apparatus using auto-power controlled semiconductor laser device

Magnetic recording/reproducing apparatus for automatically adjusting a recording current in accordance with the wear of a read head

Magnetic recording/reproducing apparatus for decreasing an error rate in recording/reproducing a digital signal

Content management method, recording and/or reproducing apparatus, and recording medium

Contents management method, contents management apparatus, and recording medium

Method and apparatus for recording information including secret information and method and apparatus for reproduction thereof

Signal processing method and apparatus, signal reproducing method and apparatus, and recording medium

Digital watermark embedding method, digital watermark embedding apparatus, digital watermark detecting method, and digital watermark detecting apparatus

Production control system, production control method and production control program

Information recording medium and method of manufacturing resinous substrates for use in the recording medium

Automatic gain control in a loudspeaker telephone set

MITSUBISHI ELECTRIC CORP

Power supply apparatus for electric discharge machine

Electric discharge machine power supply circuit

Automatic wire feeding method and apparatus for electrodischarge machining

Automatic wire supply system of wire cut electrodischarge machine

Wire-cut electric discharge machining apparatus and control method therefor

Wire electric discharge machining apparatus

Wire electrical discharge machining apparatus

Electric discharge machine and electric discharge machining method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Storage medium and contents protection method using the storage medium

Single merging bit DC-suppressed run length limited coding

Contents management method, content management apparatus, and recording medium

Mutual authentication method, recording apparatus, reproducing apparatus, and recording medium

TOKYO SHIBAURA ELECTRIC CO

Liquid crystal display device

Amplifier with muting circuit

Cascade-comparator A/D converter

LION CORP

Electrically conductive resin composition

Method for producing filler-loaded thermoplastic resin composite

FUJISAWA PHARMACEUTICAL CO

Hematopoietic stem cell proliferating agents

UNIV CALIFORNIA

Nonpolar III-nitride light emitting diodes with long wavelength emission

KABUSHIKI KAISH TOSHIBA

Copyright management method, information recording/reproducing method and device, and information recording medium and method of manufacturing the medium

ASTELLAS PHARMA INC

Hematopoietic stem cell proliferating agents

HIRAI ASAKO

Planar nonpolar m-plane group III nitride films grown on miscut substrates