This page is not indexed by search engines while we improve data quality.

Hatakeyama Kazunori patents

Hatakeyama Kazunori holds 25 patents in our database, with recent filings and technology areas summarized below.

Company patent statistics
Metric	Value
Total patents	25
Recent patents	0
First publication	Jan 1, 2015
Latest publication	Mar 31, 2020

Filing trend

Year-over-year patent counts for this assignee.

Filing activity over the last five years is rapidly declining.

Patents filed per year
Year	Patents
2015	7
2016	5
2017	9
2018	2
2019	1
2020	1

Browse patents by year
Year	Patents
2015	7
2016	5
2017	9
2018	2
2019	1
2020	1

Recent patents

Latest publications where this party is an assignee.

Heat pump device, air conditioner, and freezer
US-10605500-B2 · Mar 31, 2020 · US
Heat pump device, and air conditioner, heat pump water heater, refrigerator and freezing machine including heat pump device
US-10208991-B2 · Feb 19, 2019 · US
Direct-current power supply device and electric motor driving device
US-9948203-B2 · Apr 17, 2018 · US
Heat pump device, air conditioner, and freezer
US-9903629-B2 · Feb 27, 2018 · US
Heat pump device, heat pump system, and method for controlling inverter
US-9829234-B2 · Nov 28, 2017 · US

Notable patents

Representative or frequently cited publications from precomputed assignee stats.

Heat pump device, air conditioner, and freezer
US-10605500-B2 · Mar 31, 2020 · US
Heat pump device, and air conditioner, heat pump water heater, refrigerator and freezing machine including heat pump device
US-10208991-B2 · Feb 19, 2019 · US
Direct-current power supply device and electric motor driving device
US-9948203-B2 · Apr 17, 2018 · US
Heat pump device, air conditioner, and freezer
US-9903629-B2 · Feb 27, 2018 · US
Heat pump device, heat pump system, and method for controlling inverter
US-9829234-B2 · Nov 28, 2017 · US

Top CPC classifications

Most common classification codes in this portfolio.

Top CPC codes by patent count
CPC	Patents
F25B49/025	18
Y02B30/70	17
F25B2600/021	16
F25B30/02	12
Y02B30/741	11

Technology areas

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Electricity	23
Cross-Sectional Technologies	21
Mechanical Engineering	19
Operations & Transport	3