Inventor

OSHIMA TAKAFUMI

JP67 patents

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

OSHIMA TAKAFUMI

NGK SPARK PLUG CO

Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor

Nitrogen oxide concentration sensor

Spark plug having an erosion resistant tip

Spark plug and its electrode configuration

Spark plug

Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor

Method and apparatus for correcting a gas sensor response for moisture in exhaust gas

Flow rate and flow velocity measurement device

Exhaust gas sensor and system thereof

Humidity sensor

Gas concentration sensor

NOx sensor

Spark plug for use in internal combustion engine

Spark plug having a noble metal electrode tip

Spark plug for use in an internal combustion engine

Spark plug for use in an internal combustion engine

Spark plug having heat- and corrosion-resistant surface

Hydrogen gas sensor

Split-flow flowmeter with a profusion facing the detection element

Split-flow-type flowmeter

Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor

Device for measuring combustible-gas concentration in an exhaust gas

Flow measurement device for measuring flow rate and flow velocity

Method for measuring NOx concentration and NOx concentration sensor

Gas sensor

Gas concentration sensor

Gas sensor, gas sensor system using the same

Vehicle-lamp lighting-on device

Method for manufacturing electrode

High-voltage transformer and a vehicle-lamp lighting-on device using the same

Spark plug having a noble metal firing tip bonded to a front end of a center electrode

Method of making a spark plug

Method of manufacturing a center electrode for a spark plug

Outer electrode for spark plug and a method of manufacturing thereof

Method and apparatus for measuring NOx gas concentration

Method and apparatus for measuring NOx gas concentration

Rapid heat-dissipating type spark plug for internal combustion engines

Exhaust gas sensor

Mass flow sensor and mass flowmeter comprising the same

Spark plug structure

Gas sensor

Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine

Gas sensor, method of manufacturing the same, and gas sensor system using the gas sensor

Electrode for silicon carbide semiconductor, silicon carbide semiconductor element comprising the electrode, and production method therefor

Gas sensor

Method of manufacturing a gas sensor

Lanthanum gallate sintered body

Gas sensor and apparatus for measuring combustible gas component concentration using the same

Gas sensor, gas sensor system using the same, and method of manufacturing a gas sensor

TOTO LTD

Non-membrane water electrolyzer