Owned patent

Takasago Thermal Engineering holds the highest number of patents in the industry, demonstrated our technical capabilities.As of the end of March 2021, there are 746 cases (patents / utility model / design / trademark), and the number of patents acquired is 459 in Japan and 16 overseas.

Representative technical fields in which we hold patents

Technical Field No. of Cases
IDC 37
Air conditioning systems (air type 22, water type 14) 36
Heat Storage 31
Water Supply and Drainage/Fire Extinguishing 28
Measurement 28
Construction Methods 23
Clean Rooms 22
Sterilization/Deodorization 22
Automatic Control/Centralized Monitoring 22
Dehumidification 19
Fuel Cells/Hydrogen 18
Heat Source Systems 15
Maintenance Management 13
Ice - Making 13
Air Conditioners 11
Displacement Ventiration 11

Recently registered TTE patent

Name Clean Room Device and Air Circulation Unit
Application number Patent Application No. 2019-200819
Publication number Patent Publication No. 6878552

This is an invention relating to "TCR-SWIT®," which is a Swirling Induction Type HVAC System SWIT® that is applicable to clean rooms. It allows for quick construction of a clean room that ensures cleanliness of the conditioned area with a small number of air changes, and also ensures ample installation space for production and other equipment within the clean room.

Conventional FFU-based clean rooms required a large number of air changes to ensure mixing of all air within the clean room. To improve on this, TTE developed a system that ensures cleanliness of the conditioned area with a small number of air changes by swirling cooled purified air and supplying it horizontally in conditioned areas the lower section of the clean room, and for which TTE holds a patent for (Patent No. 5361140). Yet this system required installation of a large external unit and return shaft, and its longer supply ducts required lengthy installation times.

The structure of this invention is such that air sucked in by fan 37 must always pass from behind through high-performance filter 36, even if the air circulating unit is made thinner. In particular, air circulating unit 30 that contains the following is positioned within clean room 10.

  1. Intake vent 31 installed in a higher position than conditioned area 11
  2. Multiple supply vents 32 that supply air horizontally into conditioned area 11, arranged in a layout up to the height of conditioned area 11
  3. Chiller 35 and high-performance filter 36
  4. Fan 37 that sucks air within clean room 10 from intake vent 31 and blows it toward supply vent 32
  5. Baffle plate 40 installed in opening 41 on the side (when intake vent 31 is on the front side) further behind high-performance filter 36

This invention allows the installation of a return shaft, supply ducts and other sections to be omitted, which ensures cleanliness of the conditioned area with a small number of air changes while also being a relatively simple device. The installation of baffle plate 40 within air circulating unit 30 ensures that air sucked in by fan 37 must always pass from behind through high-performance filter 36 to supply clean room 10, even if high-performance filter 36 and chiller 35 take a lot of space within air circulating unit 30. This allows air circulating unit 30 to be made thinner with high-performance filter 36 and chiller 35 built in, which ensures ample installation space for production and other equipment within the clean room.

[Legend]
10 Clean room, 11 conditioned area, 12 Equipment, 30 Air circulating unit, 31 Intake vent, 32 Supply vent, 35 Chiller, 36 High-performance filter, 37 Fan, 40 Baffle plate, 41 Opening