Masafumi Kunimitsu

Title: Masafumi Kunimitsu: Automotive Fuel-System Inventions.

Introduction

Masafumi Kunimitsu is an inventor associated with Okazaki, Japan, and Mitsubishi Motors Corporation, the commonly used English name for Mitsubishi Jidosha Kogyo Kabushiki Kaisha. His patent work includes fuel-system technologies designed to manage fuel vapors and support effective vehicle refueling. The supplied information lists 4 patents.

Latest Patents

**Fuel Tank Device.** This invention places a canister inside a vehicle’s fuel tank to adsorb and store evaporative fuel. A support member and sealing member suspend the canister from the edge of an opening in the tank body. Its position keeps it from being directly exposed to fuel entering through the filler tube.

**Fuel Evaporative Emission Treatment System.** This system uses a canister to absorb fuel vapors and connects it to the fuel tank, engine intake, and atmosphere. Its vent arrangement includes a solenoid-controlled passage, an air filter, and a one-way or lead valve that opens during refueling. The design allows fuel vapors to be treated while helping maintain refueling performance despite the air filter.

Career Highlights

Kunimitsu’s listed inventions address two related automotive engineering challenges: containing evaporative fuel and managing vapor flow during refueling. Both patents describe components integrated with a vehicle’s fuel tank and emission-control system.

Collaborations

The supplied information identifies Kiyoshi Mori and Tomokazu Muraguchi as Kunimitsu’s coworkers. It does not specify their roles in the listed patents.

Conclusion

Masafumi Kunimitsu’s documented patent work focuses on practical fuel-tank and evaporative-emission technologies, with designs intended to control fuel vapors without compromising refueling.