HOT WATER SUPPLY DEVICE

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United States of America Patent

SERIAL NO

15213701

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Abstract

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A hot water supply device (1) includes: a fin and tube type heat exchanger (17) for aplying heat to water with combustion gas; a temperature detection means (32) for detecting an exhaust temperature after heat exchange by the heat exchanger (17); and a determination means that determines that scale is deposited within the heat exchange tubing (27) of the heat exchanger (17) if the exhaust temperature detected by the temperature detection means (32) is higher than a set temperature.

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Patent Owner(s)

Patent OwnerAddress
NORITZ CORPORATIONHYOGO

International Classification(s)

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  • 2016 Application Filing Year
  • F24H Class
  • 350 Applications Filed
  • 252 Patents Issued To-Date
  • 72 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DOYAMA, Masato Kobe-shi, JP 4 73
ISHIKADO, Masamitsu Kobe-shi, JP 2 1
KINUGASA, Tomofumi Kobe-shi, JP 8 64
KUSAKABE, Makoto Kobe-shi, JP 8 11

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3779501 - 1011 - 200510152025303540455055606570758085

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