Pentel Kabushiki Kaisha

Other

Tsuruo Nakayama

Tadashi Matsunaga

Masamitsu Nagahama

Tomozo Sekiguchi

Nobuyuki Murakami

Tetsuya Sugiyama

Hiromichi Takahashi

Tsukasa Sasaki

Hitoshi Wake

Takashi Yamaya

Kamakura Kenichi

Hideo Kadoi

Noriyuki Nakamura

Toshihiro Takimoto

Fumiharu Kurokawa

Kin-ichi Ozawa

Hiroaki Okabayashi

Yuichi Miyahara

Nobuo Murasawa

An electrochemical stain prevention apparatus of a submerged structure comprising a submerged structure of which at least the stain prevention surface is formed of a conductive film that does not generate chlorine even by applying a potential of 5 V vs. SCE or less, a counter electrode located so as not to contact with the submerged structure, and a power supply unit for passing a direct current through the submerged structure having the conductive film formed thereon and the counter electrode. Aquatic organisms adhered to the surface of the conductive film can effectively be controlled by applying a potential of from 0.1 to 5 V vs. SCE to the submerged structure of such a stain prevention apparatus without generating chlorine. A potential applied to the conductive film of the submerged structure can be controlled with good accuracy by disposing a reference electrode between the submerged structure and the counter electrode. As the conductive film formed on the substrate of the submerged structure, a sprayed coating film made of a metal nitride can preferably be used.

Electrochemical stain prevention apparatus of submerged structure and process for producing submerged structure used in this apparatus

A decorative article comprising a rod-like base and a seamless cylindrical fabric body covering the surface of the base in an integral form through an adhesive layer. This decorative article can be produced by the following methods. a method which comprises applying a hot-melt adhesive onto the surface of a rod-like base, inserting the base into a seamless cylindrical fabric body, and press-bonding the fabric body with the base while heat-melting the adhesive, thereby adhering said fabric body to said base; a method which comprises inserting a rod-like base made of a thermoplastic resin into a seamless cylindrical fabric body and heat-pressing the surface of the fabric body to melt the surface of the base, thereby adhering the fabric body onto the base with the formed melt; or a method which comprises applying a hot-melt adhesive onto the surface of a rod-like base, inserting the base into a seamless heat-shrinkable fabric body, and shrinking the fabric body while heat-melting the adhesive through heat treatment, thereby adhering the fabric body to the base.

Decorative article and method of producing same

Mechanical pencil lead protection pipe with protuberance

Growing community of inventors

Soka, Japan

Tsuruo Nakayama