Hideki Umemoto

Bushiness and a Tight Worst-Case Upper Bound on the Search Number of a Simple Polygon

Masafumi Yamashita, Ichiro Suzuki, Hideki Umemoto, 1998, Inf. Process. Lett..

Searching for Mobile Intruders in a Polygonal Region by a Group of Mobile Searchers

Masafumi Yamashita, Ichiro Suzuki, Hideki Umemoto, 2001, SCG '97.

Searching for Mobile Intruders in a Polygonal Region by a Group of Mobile Searchers (Extended Abstract)

Masafumi Yamashita, Ichiro Suzuki, Hideki Umemoto, 1997, Symposium on Computational Geometry.

engine-knock control device for

Shoichi Kato, Hideki Umemoto, Satoshi Komurasaki, 1989 .

Engine control device for a multi-cylinder engine

Wataru Fukui, Hideki Umemoto, 1992 .

Motor control device for a multi-cylinder engine

Wataru Fukui, Hideki Umemoto, 1992 .