Management Philosophy of the AIR Water Group

Management philosophy is a concept that serves as the basis of action policy for all the businesses of the Air Water Group.
The origins of the AIR Water Group’s business can be found in its name, which consists of two words: “air” and “water.”
We make use of the resources of our precious earth to create businesses and contribute to society and everyday life.
Amid a business environment that continues to change at a dizzying pace, we will continue to leverage the Group’s collective capacities to tackle problems faced by our customers and society, and will rise to the challenge of creating new value.

Business philosophy

We are proud to contribute to society through our daily work aimed at creating “Painless Needles.”

Currently, we are delivering the injection needles we produce to markets in more than 80 countries around the world. As we have strived for over 50 years to produce injection needles and other essential medical hardware, our goal has been to create “Painless Needles.” In other words, we wish to minimize the pain of patients.
To achieve this goal, however, we have had to assemble advanced technologies, to diligently tackle daily production tasks, and to maintain a constant commitment to enhancing quality. As the fruit of this approach, our injection needles are now used in over 80 countries around the world, a fact that gives us a great sense of pride. Now, with the advanced technology and sophisticated production system we have set up, we can look ahead with an even broader mission for the future—to develop new products and make further contributions to the field of medicine.

Overview of our new Plant

We have relocated our plant from Asahi machi to Nagatoro, Ibaraki central industrial park in Kasama City. We will introduce new production facilities for injection needles in dental and aesthetic field. Apart from expanding the advanced medical product facility for injection needles with 2 high-class clean rooms, we will strengthen further production capacity with our existing plants. This change enable us to increase the annual production capacity at 3 domestic plants from 1.9 billion pcs to 3 billion pcs. Our mission is to respond the growing demand for Japanese high quality needles in overseas. In order for us to achieve customer’s needs, we will continuously establish production and development system to provide higher performance, and higher quality products efficiently.


Location 1320-5, Nagatoro, Kasama City, Ibaraki Prefecture, 309-1712 Japan Telephone:(Main)+81-296-77-8888 (Sales)+81-296-77-8804 FAX: (Main)+81-296-77-8901 (Sales)+81-0296-77-8849
Area Site area: 22,000㎡ Total floor space:3,947㎡
Floor 1 floor, steel framed structure
Manufacturing categories Hypodermic Injection Needles, Dental Needles, Aesthetic Needles
Production capacity 1.9 billion pcs/ year
Introduction equipment Needle assembling machine (for dental and aesthetic), 2 clean rooms (Assembling lines: class 10,000 835㎡, Molding lines: class 100,000 647㎡) EOG (Ethylene oxide gas) sterilization devices
Number of employees 98 employees
Operation start date June 15th of 2020


Business profile

Main Business contents Manufacture, sale, import and export of sterilized medical equipment
Main exporting country United States, Canada, Colombia, Brazil, Mexico, United Kingdom, Germany, Italy, France, Saudi Arabia, Egypt, Nigeria, South Africa, China, Vietnam, Thailand, Taiwan, Indonesia and Australia Additionally,80 countries in the world.
Number of Employees 318
Joining group THE TOKYO CHAMBER OF COMMERCE AND INDUSTRY, Japan External Trade Organization(JETRO), Eastern Japan plastic industrial society, Medical Technology Association of Japan (MTJAPAN)

Business History

1956 Established plastic blow molding plant in Sumida-ku, Tokyo. Commenced plastic blow molding production.
1963 Moved from Sumida-ku, Tokyo to Hirai, Edogawa-ku, Tokyo, and increased production with injection molding machines. Succeeded in developing plastic cases for injection needles (patent acquired), and commenced manufacture of medical equipment.
1965 Succeeded in manufacture of disposable injection needles. New plant established in Minamihara, Tomobe-machi, Nishi-Ibaraki-gun, in Ibaraki Prefecture, and full-scale production of injection needles commenced.
1972 Company name changed to Misawa Medical Industry Co., Ltd. New plant completed at Asahidai.
1986 Head Office building completed in Hirai, Edogawa-ku, Tokyo. Relevant authorities notified of medical equipment sales operations.
1987 New plant complex constructed at Yoshima Industrial Park in Iwaki City, Fukushima Prefecture, and operation commenced.
1994 Shanghai Misawa Medical Industry Co., Ltd. joint venture company established in Shanghai, China.
1994 Licensed for manufacture of medical equipment for animals.
1998 Acquired the ISO 9001 international certification for quality management and quality assurance.
1999 Acquired sterilization process manufacturing category permission, and commenced contracted sterilization operations.
2004 Acquired ISO 13485:2003 quality certification for medical equipment.
2012 Head Office General Affairs and Sales Department consolidated at Asahidai Plant in Kasama City, Ibaraki Prefecture.
2012 Tokyo sales office (Hongo) opened.
2016 Transfer of all shares to Air Water Inc. and Kaigen Pharma Co., Ltd.
2018 Merged with Saito Medical Industries, Inc.
2019 Became a wholly owned subsidiary Air Water Inc
2020 Main factory completed in Ibaraki Central Industrial Park (Kasama area) , and the head office and Asahidai plant relocated.
2021 Merged with Matsuoka Meditech Corp. and The name of the plant has changed (Head office & plant ⇒Tomobe Plant / Saito Plant⇒ Nasu Plant)
2023 Fuji Giken Kogyo Co., Ltd. Business transfer (Fuji Factory: Former Atsuhara Factory, Fujinomiya Factory: Former Kamiide Factory)
2023 Air Water Realize Inc. merged Misawa Medical Industry Co., Ltd.

Access map

Tomobe Plant

1320-5, Nagatoro, Kasama City, Ibaraki Prefecture, 309-1712 Japan
Telephone:(Main)+81-296-77-8888 (Sales)+81-296-77-8804
FAX: (Main)+81-296-77-8901 (Sales)+81-0296-77-8849

Nasu Plant

767-80 Hachisu, Ohtawara City, Tochigi Prefecture 324-0244, Japan
FAX: +81-287-54-3517

Iwaki Plant

21 Yoshima-Industrial Park, Iwaki City, Fukushima Prefecture 970-1144, Japan
FAX: +81-246-36-6871

Fuji Plant

1602 Atsuhara, Fuji City, Shizuoka Prefecture 419-0201, Japan
FAX: +81-545-71-1991

Fujinomiya Plant

2151-2 Kamiide, Fuji City, Shizuoka Prefecture 418-0103, Japan
FAX: +81-544-54-3100

License and qualification

License and qualification Plant The permission number
2nd-class medical devices marketing license Tomobe Plant 08B2X10007
2nd-class  Animal medical device manufacturing and sales license Tomobe Plant 30製販療Ⅱ第65号
Medical equipment manufacturing industry registered Tomobe Plant 08BZ200116
Iwaki Plant 07BZ000081
Asahi-dai Plant 08BZ000108
Animal medical device manufacturing license Tomobe Plant
Asahi-dai Plant 29製造療第79号
Medical devices sales license Asahi-dai Plant 笠第344号
EC Directive 93/42/EEC Tomobe Plant
Iwaki Plant
Asahi-dai Plant
HD 2014410-1
EN ISO 13485:2016 Tomobe Plant
Iwaki Plant
Nasu Plant
Asahi-dai Plant
SX 2014410-1
FDA Tomobe Plant 3017024395
Iwaki Plant 9612124
Asahi-dai Plant 9612129