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Ohara Inc. Patents |
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Assignee: Ohara Inc.
Address: Kanagawa, JP
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7589038 |
Inorganic composition |
September 15, 2009 |
| The present invention provides an inorganic composition for use in information recording medium disc substrate and such, having an excellent surface property capable of sufficiently corresponding with a ramp load system for high density recording, a high degree of tolerability to high |
| 7553768 |
Substrate and a method for polishing a substrate |
June 30, 2009 |
| A substrate having flatness of less than 230 nmPV and surface roughness at RMS of less than 0.20 nm. is obtained by a method comprising: a process of polishing an object to be polished with a polishing pad comprising at least one layer having compressibility of 5% or below in a base laye |
| 7405883 |
Optical component and method of manufacture of optical component |
July 29, 2008 |
| An optical component or optical low-pass filter has two or more regions demarcated by differences in refractive indexes, in which a region having a refractive index different from the refractive index of the continuous region with the largest volume among the two or more regions is forme |
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