About Us

About Us

What is OHR technology ?

OHR (Original Hydrodynamic Reaction) technology handles both fluids (gases and liquids) and slurries (powder suspended in liquid). Fluids are passed through a special pipe (OHR MIXER or OHR AERATOR), where they are instantaneously broken down into ultrafine particles. Fluid mixing and reaction are thus significantly accelerated.

The MIXER and AERATOR consist of two kinds of uniquely-shaped separating elements, which can only be found in OHR products and offer unparalleled performance.

In one particular case involving emulsification, a resin manufacturer had been using conventional high-pressure (50 MPa) emulsification equipment costing in excess of $200,000 in its production line. After testing the performance of the OHR MIXER, this conventional equipment was replaced with a $3,800 OHR MIXER running at a pressure of 0.5 MPa — just 1% of that required by the old equipment. The OHR MIXER’s mixing capability is powerful enough to perform the same function as the high-pressure emulsification equipment at just 1% of the pressure.

On the other hand, the OHR AERATOR is an innovative air diffuser possessing a powerful gas–liquid mixing function. It can be used not only for wastewater treatment but also for accelerating chemical reactions. It has been independently verified to operate clog-free even in harsh environments that rapidly clog up other air diffusers.

OHR technology can solve your technological needs and lead to innovative new products.

Technological philosophy

OHR technology was created and developed entirely by one Japanese man: Masahiro Takeda (1921–1995). Takeda’s technological philosophy is as follows. This is described in detail in Noguchi Institute Annual Report No.30 published by the Noguchi Institute on October 1st, 1987.

  • Fluid must be regarded as a cluster or continuum of fluid particles and not merely seen as a mass of fluid.
  • Conventional technology is limited in that even when one of the two fluids is broken down into fine particles, these end up being carried away by the other fluid flow, resulting in extremely brief contact and reactions.
  • In order to maximize the acceleration of reactions, the resistance of the fluid particle film must be minimized, thereby ensuring that the time behind the reaction is also minimized. To this end, it is necessary to minimize the size of the individual fluid particles and instantaneously induce both physical changes via low-temperature boiling as well as continuous collisions between pairs of particles.

This philosophy of Takeda’s is a jewel in the history of fluid treatment technology. Takeda’s genius was in converting this abstract philosophy into concrete mathematical formulae and optimal structures in order to realize the fundamental mechanisms of OHR fluid reaction technology outlined below.

  • The instant the cluster/continuum of fluid particles passes through the specialized structure, its chains are broken apart, creating countless individual particles.
  • By using the physical properties of the individual fluid particles, they can be made to zigzag back and forth between high and low pressure regions inside the pipe, which results in low-temperature boiling. At the same time, the centrifugal and centripetal forces cause a succession of violent collisions between the particles.

With its simple and intelligent design, the special internal structure of the OHR pipe has been proven to be effective over many years and is on the cutting edge of fluid technology to this day. It is easy to see from its outstanding track record that OHR fluid reaction technology is far superior to conventional such technology.

Real-world examples  Mechanism diagram

Our contribution to the future

1. In the field of environmental technology

Chemicals (e.g. chlorine, antimicrobials and deodorizers) used for wastewater treatment are useful but also harmful to the environment. Heavy-handed methods that rely on chemicals go against ecology, and therefore cannot be said to be ‘smart’ environmental technology. We will continue to work towards solving environmental issues using OHR technology created by Takeda, who sincerely hoped to solve such global problems. We provide technology for many situations in order to reduce chemical costs and solve these environmental problems, as in the following examples.

OHR ozone treatment that is both inexpensive and highly efficient  
Improvement of existing conventional DAF systems (flotation separation equipment) to drastically reduce flocculants

Drastically reduces the amount of disinfectant required in white water (produced as part of papermaking)

2. In the field of production technology

Today’s production technology requires bulky, complex production equipment, a large number of professional engineers, and enormous amounts of capital. There are also the large losses associated with mass production.
However, OHR technology is an integral part of compact and smart production equipment, which enables production facilities to be smaller and built in larger numbers all around the country, rather than being concentrated in one location. This minimizes losses associated with production. By enabling production facilities to be built in this way, a stronger, more vibrant and more geographically-diverse society can be realized.

Company profile

Established April 8th, 1993
(OHL LABORATORY CORPORATION was established in 1976 and is the predecessor of OHR
Business description
  1. Development, manufacturing and sale of OHR products.
  2. Development of groundbreaking manufacturing, reaction and wastewater treatment equipment and methods.
  3. Solving problems in existing manufacturing, reaction and wastewater treatment facilities.
  4. Advice for and design of new and existing wastewater treatment facilities using OHR equipment.
Capital stock 10,000,000 JPY
Address 536-1, Noda, Irumashi, Saitama 358-0054 JAPAN
TEL / FAX +814-2932-5466 / +814-2932-5605
Demonstration room 6-1, Minamishincho, Hachioji, Tokyo 192-0075 JAPAN


Company history

1972 Masahiro Takeda opens the Takeda Fluid Engineering Laboratory in Setagaya-ku, Tokyo and begins research into fluid reaction accelerator technology.
1976 Takeda founds OHL Corporation in Meguro-ku, Tokyo, becomes president of the company, and completes development of OHL’s central mechanism (REACTOR, AERATOR, MIXER).
• Takeda gives a lecture on OHL desulfurization technology at the Desulfurization Technology Forum hosted by the Japan Management Association.
• Treatment equipment capable of simultaneous desulfurization and denitration supplied to MITI’s Osaka Industrial Technology Laboratory.
• At the 12th Osaka International Pollution Control Show, he conducted a public demonstration of an OHL desulfurizer’s 99.9% desulfurization rate.
1980 NASA invites Takeda to give a lecture on OHL fluid reaction acceleration technology at the University of Southern California, presided over by Professor Dan.
1983-1993  Takeda sets up the laboratory at the Noguchi Institute (Itabashi-ku, Tokyo) and conducts various experiments and research.
Apr. 1993 OHL Laboratory Corporation is founded as the successor of OHL corporation. Mr. Hideto Uematsu (the current president) becomes president of the company.
Apr. 1997 OHL Laboratory Corporation begins a marketing alliance with Seika Corporation.
May. 1997 OHL Laboratory Corporation is reorganized and renamed OHR Corporation (doing business as OHR Laboratory
Jun. 2000 OHR equipment sales in Japan exceeds 1,000 factories.
Oct. 2002 OHR equipment sales in Japan exceeds 1,500 factories.
Mar. 2006 OHR equipment sales in Japan exceeds 2,700 factories.
May. 2006 The Decompo system for reducing the volume of excess biological sludge debuts at the New Environmental
Exposition 2006.
Jun. 2007 OHR equipment sales in Japan exceeds 3,100 factories.
Aug. 2007 Marketing alliance with Seika Corporation comes to an end.
The OHR AERATOR AE-130N (made of polypropylene), a full revamp of the AE-130, makes its debut.
Sep. 2007 Makafine, a flavoring and perfuming machine for shochu (a type of Japanese alcoholic beverage), makes its debut.
This revolutionary machine generates microbubbles to separate the fat and oil in Shochu ingredients and carry it to
the surface.
Aug. 2012 OHR equipment sales in Japan exceeds 3,400 factories.
Sep. 2016 OHR equipment sales in Japan exceeds 4,000 factories.
Oct. 2016 The OHR AERATOR AE-50N (made of polypropylene), a full revamp of the AE-50, makes its debut.
Jun. 2019 Heat resistance and strength of the AE-130N enhanced by changing material to 30% talc-filled polypropylene.


OHR technology patent granted in the following twelve countries: the USA, Canada, the UK, Germany, France, Denmark, Switzerland, Italy, the Netherlands, the former Soviet Union, Japan, South Korea, Taiwan, Australia, Brazil.
A total of 42 patents have now been granted worldwide.