Inventor

NISHIYAMA NOBUMASA

JP47 patents

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

NISHIYAMA NOBUMASA

HITACHI LTD

Magnetic recording and reproducing apparatus with thermal asperity correction

Magnetic recording and reproducing apparatus with reproducing head of magnetoresistive type having control of magnetic bias level

Readout circuit in magnetic recording device

Read channel for magnetic recording

Method and apparatus for fast transfer of data in recording and reproducing system

Data reproducing apparatus for eliminating undershoots in the vicinity of the outer edges of a magnetic pole

Readout circuit in magnetic recording device

Equalizer used for magnetic storage device

Magnetic recording drive having arrangements for average useful life of magnetorestive effects sensors

Digital magnetic writing and reading apparatus

Multi slice level signal circuit

Magnetic recording drive having arrangement for averaging useful life of magnetoresistive effect sensors

Magnetic recording drive

HITACHI GLOBAL STORAGE TECH

Magnetic disk drive having a suspension mounted transmission line including read and write conductors and a lower conductor

High frequency interconnect signal transmission lines

Method and apparatus for reducing crosstalk and signal loss in flexing interconnects of an electrical lead suspension

Magnetic disk drive reducing influence of rigidity of transmission lines on suspension

Electrical lead suspension having partitioned air slots

On the fly write head flyheight detector

Conductive member, disk drive using same, and conductive member fabricating method

Magnetic head slider with ground and heater terminal arrangement and magnetic head assembly

Thin film magnetic head with flying height adjustment capability

Recording disk drive with reduced noise thermal flyheight control

HGST Netherlands BV

Hermetic sealing with high-speed transmission for hard disk drive

Hermetic sealing with high-speed transmission for hard disk drive

Magnetic recording disk drive with write driver to write head transmission line with multiple segments having different numbers of conductive traces

Grounding for a hard disk drive suspension tail

Magnetic recording disk drive with multiple preamplifiers and common transmission line with impedance compensation

Shielded flex cable for use in a disk drive

WESTERN DIGITAL TECH INC

Flexible type electrical feed-through connector assembly

Flex-HGA connector assembly for hard disk drive

Multilayer flex circuit with non-plated outer metal layer

Hermetic sealed electrical connector with high-speed transmission for hard disk drive

CONTRERAS JOHN T

Conductor suspension structure and electrical connection assembly for transmitting complementary signals in a hard disk drive

Interleaved conductor structure with offset traces

Interleaved conductor structure with wrap around traces

NISHIYAMA NOBUMASA

Head-gimbal assembly including a transmission-line structure for high-density magnetic recording

Microactuator, head gimbal assembly, and disk drive device

HITACHI GLOBAL STORAGE TECH NL

Disk drive and control method thereof

Magnetic head having a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer

ALEX MICHAEL

Magnetic recording disk drive with write driver to write head transmission line having non-uniform sections for optimal write current pulse overshoot

NHK SPRING CO LTD

Pseudo flexure for disk drive and method of testing electronic circuit for disk drive

HITACHI MAXELL

Personal information display system for serving large capacities of general information to user-designated stations at user-designated times

MORINAGA AKIRA

Hard disk drive with write assist based on detected conditions

OTA RYOHEI

Disk drive and head assembly having hole sequences

NAGAOKA KAZUHIRO

Head-stack assembly including heat-dissipation and impedance-matching structure and hard-disk drive using the head-stack assembly

CONTRERAS JOHN

Read path compensation for SNR and signal transfer