Inventor
SAKA HIROSHI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “SAKA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
11 patentsUS5291161AMar 1, 1994
Microwave band-pass filter having frequency characteristic of insertion loss steeply increasing on one outside of pass-band
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5235296AAug 10, 1993
Directional coupler using a microstrip line
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US5015976AMay 14, 1991
Microwave filter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US4906946AMar 6, 1990
Microwave oscillator having series and parallel feedback
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US5483686AJan 9, 1996
Channel selecting apparatus for simultaneous use with both phase-continuous modulation signals and digital modulation signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations89
US4679249AJul 7, 1987
Waveguide-to-microstrip line coupling arrangement and a frequency converter having the coupling arrangement
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations89
US4707669ANov 17, 1987
Dielectric resonator microwave oscillator having enhanced negative resistance
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US4648128AMar 3, 1987
Microwave integrated circuit immune to adverse shielding effects
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US4623848ANov 18, 1986
Microwave preamplifier
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US4541123ASep 10, 1985
Mixer circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62
US4450584AMay 22, 1984
Microwave integrated circuit mixer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62