Patents by Inventor Masayuki Nisimura

Masayuki Nisimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Exhaust system for outboard motor
    Patent number: 5908338
    Abstract: This invention is an outboard motor exhaust device compatible with a small, lightweight cylinder block, which simplifies the exhaust manifold assembly and allows greater precision of assembly. The engine of an outboard motor is located above an engine holder, and comprises a horizontally assembled cylinder head, cylinder block, and crank case. An air intake device is located on one side of the cylinder block, and the exhaust manifold comprising the exhaust device is located on the opposite side of the cylinder block from the air intake device. A side surface of the cylinder head and a side surface of the engine holder are coplanar and form a support for the exhaust manifold.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: June 1, 1999
    Assignee: Suzuki Motor Corporation
    Inventors: Naoki Kawasaki, Masayuki Nisimura, Atsushi Noda, Mitsuhiko Ohta