Our company started with the development of a disaster-resistant LPG generator that uses propane gas cylinders in response to the heartbreaking feelings of the victims of the East Japan Earthquake, who suffered from the lack of electricity and gasoline. Currently, we are selling an emergency generator under the product name Elsona.
In addition, as disasters occur frequently these days, we have begun developing a two-wheel drive motorcycle that can quickly reach disaster-stricken areas.
By making full use of the coreless motor and making it a geared motor, we are aiming to create a motor with strong torque and create a two-wheel drive motorcycle.
Furthermore, we are selling flat speakers at JR stations and Shinkansen 700 series trains. This speaker does not take up much space and is likely to revolutionize the world of cone speakers, which are popular all over the world.

President:Hitoshi Iwama




2024.04
We have started developing a coreless motor.
2024.03
We have begun developing a two-wheel drive motorcycle for disaster relief.
2024.03
The battery repair machine has been completed.
2024.02
We have decided to supply flat speakers to JR.
2024.01
We have started developing an oxygen server.
2024.01
Became a subsidiary of Toyota HD Co., Ltd.




Patent, design related
Law TypeInventorApplication DateApplication No.Registration No.Product
DesignHitoshi Iwama2015/5/282015-0118431548956Frame of Motor-Assisted Bicycle
DesignHitoshi Iwama2015/8/312015-0191931552344Tricycle
PatentHitoshi Iwama2015/9/182015-184691Internal-Combustion Engine
PatentHitoshi Iwama2015/10/262015-209784Snow Melting Agent
PatentHitoshi Iwama2015/11/182015-2256896637297Water Treatment Equipment And Water Treatment Method
DesignHitoshi Iwama2016/2/252016-0025011564652Refrigerator
PatentHitoshi Iwama2016.6.142016-117966Freezer
PatentHitoshi Iwama2017/5/302017-106940Gas Engine Start Controller And Power Supply System
PatentHitoshi Iwama2017/5/122017-0957326683981Power Supply
PatentHitoshi Iwama2017/5/302017-1069416876285Power System
TrademarkHitoshi Iwama2020/2/142020-160166357298SSJ
PatentHitoshi Iwama2021/9/172021-170531Automatic Disinfection Machine
PatentHitoshi Iwama2021/10/62021-179055Belt Suspension Frequency Measuring Device
PatentHitoshi Iwama2022/1/172022-15225Disinfection Deodorizer Device
PatentHitoshi Iwama2022/1/192022-16745Disinfection Device
PatentHitoshi Iwama2022/1/272022-21654Automatic Disinfection Machine
PatentHitoshi Iwama2022/3/302022-67928Animal chasing device
PatentHitoshi Iwama2022/4/202022-79093Disinfection mat device
PatentHitoshi Iwama22022/6/152022-107371Disinfection mat device


Scheduled application
Law TypeInventorScheduleProduct
PatentHitoshi IwamaFirst half of 2022Electrostatic Spraying System


Items under consideration for application
Law TypeInventorScheduleProduct
PatentHitoshi IwamaTBANon-flammable Foam
PatentHitoshi IwamaTBANon-flammable Urethane
PatentHitoshi IwamaTBAMotor Generator System
PatentHitoshi IwamaTBAPolymer Boiler
PatentHitoshi IwamaTBAWater Purification System



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