Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Honda Giken Kogyo Kabushiki Kaisha

Dkk-toa Corporation

Kenichi Noda

Ryosuke Matsuoka

Shuichiro Yamamoto

Atsushi Goto

Hiroshi Murakami

Hiroshi Noguchi

Noboru Kurata

Yoichi Ishibashi

Ryutaro Yamazaki

Takaharu Kurosaki

Yuji Tsushima

Shinya Nishikado

Hideaki Kanazawa

Osamu Tsuchiya

Satoshi Yawata

Ai Shimomura

Automobile grill

Automobile rear tailgate

Front end portion of an automobile

Automobile

Tailgate for an automobile

The present invention provides a mutant beetle luciferase and the like, having mutation in which the amino acid corresponding to valine at position 288 in the amino acid sequence of wild-typeluciferase is isoleucine, leucine or phenylalanine, mutation in which the amino acid corresponding to leucine at position 376 in the aforementioned sequence is proline, mutation in which the amino acid corresponding to glutamic acid at position 455 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, or mutation in which the amino acid corresponding to glutamic acid at position 488 in the aforementioned sequence is valine, alanine, serine, leucine, isoleucine or phenylalanine, in the amino acid sequence encoding a wild-type beetle luciferase, and characterized in that a luminescence intensity due to a luciferin-luciferase luminescence reaction in a 0.9% by mass NaCl solution is 50% or more of that in a NaCl-free solution.

Mutant beetle luciferase, gene, recombinant vector, transformant, and method for preparing mutant beetle luciferase

A combustion controller for an internal combustion spark ignition type two-cycle engine includes exhaust passage opening ratio adjusting means for adjusting an exhaust passage opening ratio, wherein the exhaust passage opening ratio adjusting means is driven to adjust the exhaust passage opening ratio at a value corresponding to an engine speed and a throttle valve opening ratio at least in a low load operational area. And fresh mixture in a combustion engine is self-fired with a firing timing desirable for operation of the engine. In this engine, the combustion controller includes ignition timing adjusting means for adjusting an ignition timing; abnormal combustion detecting means for detecting abnormal combustion in the combustion chamber; and control means for controlling the exhaust passage opening ratio. The ignition timing at respective values eliminates the abnormal combustion on the basis of the detection signal from the abnormal combustion detecting means.

Combustion controller for a spark ignition type two-cycle engine

A method of bevelling the peripheral edges of port openings on the inner wall of cylinders for two-cycle engines. At least the upper and lower edges of the port opening on the inner wall of a cylinder are shaped, in advance when casting the cylinder, into concavities arcuately recessed in both axial and radial directions of the cylinder. The boundary edges between the recessed concavities and the inner wall of the cylinder are lightly bevelled by pressing or grinding so that an excellent workability, mass-productivity, and great precision can be attained.

Method of bevelling port openings in cylinders for two-cycle engines

Growing community of inventors

Tokyo, Japan

Kenichi Noda