Piezoelectric material, piezoelectric element, and electronic equipment
US-2015368161-A1 · Dec 24, 2015 · US
Vibration-type driving apparatus
US8970091B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970091-B2 |
| Application number | US-201113302273-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2011 |
| Priority date | Dec 9, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A vibration-type driving apparatus includes a vibration member, to which an electrical-mechanical energy conversion element is fixed and which is vibrated when a driving voltage is applied to the electrical-mechanical energy conversion element; and a moving member that comes into contact with the vibration member and rotates relative to the vibration member in accordance with the vibration. The moving member includes a body portion and a contacting portion with a friction surface that comes into frictional contact with the vibration member and, in an area extending from a rotation axis in a radial direction, a line connecting a centroid of a shape of the moving member to an arbitrary point of the contacting portion of the moving member is parallel to a direction of the vibration trajectory of the vibration member.
First claim
Opening claim text (preview).
What is claimed is: 1. A vibration-type driving apparatus comprising: a vibration member to which an electrical-mechanical energy conversion element is fixed and which is vibrated when a driving voltage is applied to the electrical-mechanical energy conversion element; a moving member that comes into contact with the vibration member and rotates relative to the vibration member in accordance with the vibration, wherein the moving member includes a first portion and a second port…
Assignees
Inventors
Classifications
- H02N2/163Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8970091B2 cover?
- A vibration-type driving apparatus includes a vibration member, to which an electrical-mechanical energy conversion element is fixed and which is vibrated when a driving voltage is applied to the electrical-mechanical energy conversion element; and a moving member that comes into contact with the vibration member and rotates relative to the vibration member in accordance with the vibration. The…
- Who is the assignee on this patent?
- Suefuji Kei, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H02N2/163. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).