Inventor

YOKOYAMA ISAO

JP18 patents

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

YOKOYAMA ISAO

HITACHI LTD

Variable-speed pumped-storage power generating system

Method of counterflow through a pump and method of controlling the operation of a pump in a pumping installation

Method of controlling the operation of a pump in a pumping installation by detecting counterflow

TDK CORP

Impedance element mounted on a pc board

Deflection apparatus for cathode ray tube

Electromagnetic deflection-distortion corrector

TDK ELECTRONICS CO LTD

Combined dipole and ferrite antenna

Electrode assembly for use in cathodic protection

Cathodic protection

TANOI MFG CO LTD

Thread forming tap and threading method

Thread forming tap

MITSUBISHI CABLE IND LTD

Flexible screw and transport apparatus comprising same

Flexible screw and transport apparatus comprising same

SEIKO EPSON CORP

Optimization method of deposition time and an optimization system of deposition time

Optimization method of deposition time and an optimization system of deposition time

COCA COLA CO

Process for extracting anthocyanin-type colors from natural products

MITSUI TOATSU CHEMICALS

Bicyclic compound and platelet aggregation inhibitor containing the same

YOKOYAMA ISAO

Packing method and corresponding covers for hydrogen-reduced water or food production