Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Silicon nitride sintered body and process for preparation thereof

Silicon nitride sintered body and process for preparation thereof

US Patent 4920085 · Granted Apr 24, 1990

Estimated economic value: $994,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Information processing apparatus and non-transitory computer readable medium2025
Signal processing apparatus2025
Electronic apparatus and method for controlling electronic apparatus using featu2025
Oxide catalyst and method for producing unsaturated nitrile2025
Driver abnormality determination apparatus, method and computer program2025
Fluid control apparatus and electronic apparatus2024
Driving force control system for hybrid vehicle2024
Information processing apparatus, information processing method, and non-transit2024
Electronic power tool and electric power tool system2024
Tactile presentation apparatus, tactile presentation system, tactile presentatio2024
Tactile sense presentation apparatus, electronic apparatus, accessory, and holdi2024
Drive circuit, electronic device, and method of controlling drive circuit2024