Inventor

YAMAGIWA AKIRA

JP57 patents

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

YAMAGIWA AKIRA

HITACHI LTD

Signal transmission system

Apparatus for interconnecting logic boards

Source-clock-synchronized memory system and memory unit

High speed clock distribution system

Process for mounting electronic device and semiconductor device

Method and system for synchronizing data having skew

Cooling apparatus of electronic device

Cooling apparatus of electronic equipment

Cooling system of electronic computer using flexible members in contact with semiconductor devices on boards

Signal transmission system

Data transfer apparatus fetching reception data at maximum margin of timing

Method and apparatus for synchronizing parallel data transfer

Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission

Fast transmission line implemented with receiver, driver, terminator and IC arrangements

Lsi cooling apparatus and computer cooling apparatus

Multiphase clock distribution for VLSI chip

Process for mounting electronic device and semiconductor device

Circuit module and information processing apparatus

Simultaneous bidirectional transmission circuit

Uninterruptible clock supply apparatus for fault tolerant computer system

Data transfer system, computer system and active-line inserted/withdrawn functional circuit board

Simultaneous bidirectional transmission apparatus for transmitting and receiving differential signals

Jet cooling apparatus for cooling electronic equipment and computer having the same mounted thereon

Logic circuit

Process for mounting electronic device and semiconductor device

Directional coupling bus system using printed board

Process for mounting electronic device and semiconductor device

Apparatus for interconnecting logic boards

Semiconductor integrated circuit system having function of automatically adjusting output resistance value

Signal transmitting device suitable for fast signal transmission including an arrangement to reduce signal amplitude in a second stage transmission line

Variable delay circuit and clock signal supply unit using the same

System for connecting plurality of electronic units to data and clock buses wherein transmitting and receiving data in synchronization with transmitting and receiving clock signals

Branch bus system for inter-LSI data transmission

Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission

Fast transmission line implemented with receiver, driver, terminator and IC arrangements

Signal transmitting device suited to fast signal transmission

Signal transmitting device suited to fast signal transmission

Signal transmission system

Circuit module connected to a transmission line including arrangement to suppress reflections at a branch point of the transmission line

Semiconductor memory

Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission

Logic circuit

Circuit module and information processing apparatus

Data bus circuit and method of changing over termination resistor of the data bus circuit

Semiconductor apparatus of module installing type

Signal transmitting device suited to fast signal transmission

Signal transmitting device suited to fast signal transmission

Method of wiring for power supply to large-scale integrated circuit

(unassigned)

Fast transmission line implemented with receiver, driver, terminator and IC arrangements

RENESAS TECH CORP

Logic emulation module and logic emulation board