Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Yokoyama; Takashi
Address:
Osaka, JP
No. of patents:
4
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
Image display device and display unit for image display device
Mobile terminal
Fabrication of thin pellicle beam splitters
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
Process for preventing polymerization of cracked volatile products during pyrolysis and gasification
Audio signal clip detection
Semiconductor unit having a power semiconductor and semiconductor apparatus using the same
  Randomly Featured Patents
Baseball batting practice device
Automatic feature selection system for data containing missing values
Method and apparatus for guiding catheter into ventricular system of human brain
Method and apparatus for determining and setting material release mechanism timing for a material feed mechanism
Antenna spring counterweight
System and method for embedding emotion in logic systems
Connector for connecting cable-protecting pipe
Method of manufacturing semiconductor device
Paper towel container
Internal combustion engines