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:
Nov. 22, 2011
Filed:
Nov. 09, 2007
Keiji Kato, Nagoya, JP;
Hideki Kitagawa, Nagoya, JP;
Hiroaki Mori, Nagoya, JP;
Yukihiro Suzuki, Nagoya, JP;
Keiji Kato, Nagoya, JP;
Hideki Kitagawa, Nagoya, JP;
Hiroaki Mori, Nagoya, JP;
Yukihiro Suzuki, Nagoya, JP;
Rinnai Corporation, Nagoya-shi, JP;
Abstract
An energy usage display unit for displaying energy usage of gas used for a water heater, water used for the water heater or electricity used in housing where the water heater is set. The energy usage display unit includes a clock section; a counting section for counting usage of gas, water or electricity; a memory section for storing a count value of usage counted by the counting section retroactive to past by a predetermined number with a predetermined time unit; a counting control section for writing the count value of usage at predetermined time; a display control section for reading one or both of the count value and a stored value in the memory section to prepare display data of usage; and a display section for displaying usage based on the display data prepared by the display control section.