The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1993
Filed:
Jun. 25, 1991
Hiroko Kaneko, Ibaraki, JP;
Masahiro Yamada, Ibaraki, JP;
Yukifumi Shigematsu, Ibaraki, JP;
Wataru Mizutani, Ibaraki, JP;
Akira Negishi, Chiba, JP;
Takamasa Kawakubo, Gunma, JP;
Yoshihisa Suda, Gunma, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Mitsubishi Pencil Kabushiki Kaisha, Tokyo, JP;
Abstract
A tapered carbon microelectrode is produced by extruding an organic material or a composition composed of crystalline carbon fine powder and an organic binder into a thin rod form, carbonizing said rod by calcining to produce a pure carbon thin rod, soaking the resulting thin rod as an anode in an electrolytic solution, gradually pulling up the thin rod while electrochemically oxidizing the tip portion of the thin rod. Then a lead wire is connected with the thick portion of the thin rod followed by coating all the surface except the conically sharp tip portion. The tapered carbon electrode can be used for various electrochemical measurements and scanning tunneling microscope.