Guidance from JHTF It is an NPO activity that started in 1977.

For the first few years, I worked on the development and research of the new tennis field after work and on my days off during normal life time, and made various plans.
The impetus for the establishment of the NPO was that he proposed to the Japan Tennis Association that people with motor impairments in the lower body would use wheelchairs as a way to enjoy his tennis competition. He is the founder and current representative of the JHTF who visited the Japan Tennis Association.
With little funding, subsidies, and support, we proceeded with various NPO projects. In the process of developing each project, he had various encounters and was moved by developments other than competition development, and his plans for using tennis for welfare and disaster area support progressed.
Over the past 40 years, we have worked on a wide variety of projects. The planned number is more than 100 of his main contents. Details are in his project dev20/21. This business activity required him working time to generate the funds needed to run the NPO business. It was a difficult undertaking to create a new tennis environment without funds.
He has to devise and effectively utilize the time for NPO business activities and the time for business fund-raising within the 24 hours a day. The cost of running the secretariat includes the cost of initial research and development, but the average annual cost of running his NPO business was more than 4 million yen.
Most of the projects implemented were pioneering in content, but personnel expenses were not recorded for NPO projects while simultaneously proceeding with creating the necessary planning costs in addition to the secretariat expenses. It wasn't that I didn't count it, but that I couldn't do it. It was a project without concrete examples, and it was difficult.
The administrative costs of the secretariat require the same fixed costs and business costs as general companies, but he invested the income into the operation of the federation by engaging in multiple jobs.
There were years when we needed to spend more than 6 million yen, but during those times we got through it by reducing the amount of sleep we had and by delaying the implementation of the project later than planned. Fundraising work involved working in multiple industries to generate the necessary funds, but this approach has continued for over 30 years. 
As a way to use the 24 hours at this time... We proceeded with NPO activities during the daytime, which is suitable for communicating with various parties.For work to raise funds, we chose industries that could be done at night or late at night, and slept in the early morning hours. In this limited daily time, he averaged 3 hours and 40 minutes of sleep so as not to affect his activities and work, but he slept 0-5 hours a day for the whole year.
Nearly 40 years of NPO activities have been a series of diverse activities, but the details of their operations are enormous. This was the history of the NPO activities, which are said to be ups and downs.
This NPO project will soon come to an end... We hope that the content introduced on the site will be used by those involved in sports development, the welfare environment, and support for disaster-stricken areas.

 NPO Japan Handicap Tennis Federation (JAPAN HANDICAP TENNIS FEDERATION)