Resources Contact Us Home
Yokoyama; Takashi
Osaka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
6284661 Method and apparatus for producing a wafer September 4, 2001
A method and an apparatus for cutting a wafer from a crystalline ingot, by directing a stream or streams of etching gas at the crystalline ingot in a vacuum. Waste in cutting can be greatly minimized and the work environment can also be kept clean. Further, excellent surface smoothness c
5912186 Method for processing semiconductor material June 15, 1999
A method for processing semiconductor materials such as a crystalline ingot or a wafer and an apparatus employed therein. An etching gas is supplied on the surface of a semiconductor material, while laser irradiation or light quantum irradiation is applied on a predetermined part of the
5370836 Process of making porous fluoroplastics membrane for an air depolarized battery December 6, 1994
There is provided a method of making uniform porous fluoroplastic membranes having a high Gurley number and a narrow permeability range, this method comprising closing the pores on part of the surface of a fluoroplastic film by compression or by application of an ink. Also provided is a
5242763 Battery pack and its packaging method September 7, 1993
This invention relates to a battery pack composed of a plurality of flat type gas depolarizable galvanic cells such as the zinc-air battery system and its packaging method for such battery pack. More specifically, projections of a certain value of height are formed on at least one of the

  Recently Added Patents
Buildable dinnerware
System and method for interactive image-based modeling of curved surfaces using single-view and multi-view feature curves
Personal IP toll-free number
Semiconductor devices having through electrodes and methods of fabricating the same
Apparatus and sensor for adjusting vertical sensor-alignment
Receiving security risk feedback from linked contacts due to a user's system actions and behaviors
Systems and methods for providing power and data to lighting devices
  Randomly Featured Patents
Automatic baseline compensator for optical absorption spectroscopy
Secure combined interoperable multiplexing
Method for exchanging information between operating systems coexisting on the same computer
Variable angle camshaft
Combination implant carrier and vial cap
Process for preparing quinoline compounds and products obtained therefrom
System and method for order-preserving encryption for numeric data
Transdermal therapeutic system containing hormones and crystallization inhibitors
Quick gliding lure
Pipe connector with fastener having sliding blocks for fastening