We contribute to society through "basic technologies" for the harmony of humans and nature.
We work on developing new technologies that will lead to a rich living environment with security and safety. For instance Tire Technique of Antivibration (Ti-TAN Technique) of using waste tires, one of the few anti-vibration techniques in the world, was adopted by Osaka Monorail as a countermeasure construction against vibration. And we have received a nationwide high evaluation on Rebec (Revolution of end bearing capacity of pile control) and Oak-Dash Method (Oak-Down the Hole Antinoise System of Hammer). We are committed to creating the richer environment by responding to the demands of this highly developed, diversified society with our patented original technologies and construction methods of more than 30.
| Company name | OAK Co., Ltd. |
|---|---|
| President | Takahiko Kashimoto |
| Location |
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| Established | October 1994 |
| Capital | 20 million yen |
| Contractor's license |
Hyogo Prefectural Governor (Special License in 2020) No. 650992 Civil Engineering Works/Scaffolding & Earthwork/Steel Structure Works Jan. 30, 2021 |
| Measurement certification business |
on sound pressure(Registration No. 52 on sound) on vibration acceleration(Registration No. 35 on vibration) |
| Main banks |
Tajima Shinkin Bank (Western Toyooka Branch) Sumitomo Mitsui Banking Corporation (Toyooka Branch) SAN-IN GODO BANK (Toyooka Branch) |
Line of business
- Pile foundation engineering
- Construction of temporary bridges & piers
- Temporary earth retaining construction
- Ground improvement
- Measurement certification
- Test and investigation-related business
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Universal method
- Down the hole hammer method (φ250㎜~)(φ9.8 in.)
- Electric / Hydraulic vibratory hammer with / without water jet
- Preventive piling method
- Rock auger method / earth auger method
- Cast-in-place pile method
- Steel pipe piles, Pretensioned spun high strength concrete piles (identified method)
- Hard ground press-in method (Crush piler method)
- Deep layer mixing construction method
- Measurement certification on sound pressure
- Measurement certification on vibration acceleration
- Plate loading test
- Swedish sounding test
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Patent method / Special method
- OAK-DASH method (Oak's down the hole antinoise system of hammer)(patent)
- Down the hole hammer method with large diameter (φ610〜φ950mm)(φ24.0〜φ37.4 in.)
- Vibratory hammer method with high centrifugal force
- CHV method (Center hole vibratory hammer method)
- SPP method (Synchronized piling with pre-boring)(patent)
- Down the hole hammer with crush piler method
- All-casing construction method with down the hole hammer with large diameter(patent)
- Rebec (End bearing capacity test for cast-in-place pile in situ)(patent)
- End load test for cast-in-place pile in situ(patent)
- Ti-TAN technique (Tire technique of antivibration using waste tires)(patent)
- In-house piling method for restoring houses(patent)
Rich climate of "Toyooka" city
| Population | 77,519(2020 National Census) |
|---|
Toyooka, located in the northern part, Tajima area, of Hyogo Prefecture is the largest city in terms of land area in the prefecture. It is adjacent to Japan Sea to the north and Kyoto Prefecture to the east; the mother river called Maruyama River runs quietly in the middle. The coastal area is designated as Sanin Kaigan National Park; the mountainous area as Hyonosen-Ushiroyama-Nagisan Quasi-National Park. Toyooka is blessed with nature that shows various features in the four seasons.
Features
- The last habitat of wild white storks in Japan
- The famous city for bag manufacturing
