Inventor

YAMADA KATSUYUKI

JP63 patents

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

YAMADA KATSUYUKI

RICOH KK

Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium

Phase-change information recording medium and optical recording method to make higher rotation rates feasible

Optical recording medium and recording and reproducing method using the same

Method and device for recording optical data

Method and apparatus for initializing optical recording media

Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording medium

Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium

Sputtering target for producing optical recording medium

Sputtering target

Information recording medium

Information recording medium

Information recording medium

Initialization of phase-change optical recording medium

Method of recording and reproducing information and apparatus for recording and reproducing information using the method

Method of producing a sputtering target

Deposited multi-layer device

Optical information recording medium

Optical information recording medium

Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium

Optical recording method for a rewritable phase-change optical recording medium

Heat treated and sintered sputtering target

Recording and simultaneous verifying method of phase-changing type of information recording medium

Method of driving an LCD employing combining two voltages which change polarity at different times in a frame

Deposited multi-layer device with a plastic substrate having an inorganic thin film layer

Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information

Phase-change type optical information recording medium

Optical information recording medium

Method of producing a sputtering target

Optical recording medium having protective and/or adhesive layers, and method of manufacture

Optical information recording medium and information recording method and apparatus using the recording medium

Optical recording apparatus for recording addresses and having a non-consecutive part in which addresses may or may not be set

Method and apparatus for initializing optical recording media

Method and apparatus for initializing optical recording media

Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same

Optical information recording medium

Information recording method, information recording device, optical information recording medium, program for recording information and storage medium

Method of recording and reproducing information and apparatus for recording and reproducing information using the method

Optical information recording medium

Optical recording method of a phase-change optical recording medium having improved recording characteristics and uniformity and optical recording medium and optical recorder used by the method

Optical recording medium having relation between reflection layer and pit length

Optical information recording medium, with at least one inconsecutive part, and recording apparatus

Optical recording medium

Optical recording medium having relation between reflection layer and pit lengths

Method and apparatus for initializing optical recording media

Phase-change optical recording medium

RICOH CO LTD

Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium

Optical disk, recording method, recording medium, and optical disk unit, for recording information on multilayer optical disk

Power determining method, single-sided multilayer optical disk, recording method, computer program product, computer-readable medium, and optical disk apparatus

FUJITSU LTD

Bipolar static semiconductor memory device with a high cell holding margin

Semiconductor memory device and method for reading data