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. 19, 2018
Filed:
Nov. 26, 2014
National Institute of Information and Communications Technology, Koganei-shi, Tokyo, JP;
Dong Wook Kim, Koganei, JP;
Hiroshi Ando, Koganei, JP;
NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY, Koganei-shi, JP;
Abstract
An olfactory display includes a housing and a plurality of fragrance chambers formed in the housing. In each fragrance chamber, a solid-like fragrance source is accommodated and an airflow source is provided to send air into the fragrance chamber from an air intake port. An auxiliary airflow source that emits odorless air is also provided in the housing. The airflow source and the auxiliary airflow source are operated alternately or simultaneously. In response to a user operating an adjustment knob of a controller, operating time periods and stopping time periods of the airflow source and the auxiliary airflow source are changed, or the number of operating times is changed within a predetermined operating time period. A mixing ratio of the fragrance and the odorless air may also be adjusted by changing a voltage value of an alternating voltage to be applied to a piezoelectric device of the airflow source.