One World Co., Ltd.


Origin of company name

We named "One World" from connecting the "World",providing "Wan"(means dogs in Japanese) products, which is "Only One" in the world.

Our Mission

Our mission is "take action, make a difference" by offering Japanese-made dog products using Japanese traditional craft. We give three to fifteen percent of our earnings to adoption charity and projects.

company profile

Company name
One World Co., Ltd.
1-9-7-1015, Kitashinagawa, Shinagawa-ku, Tokyo, 140-0001, Japan
Ayako Tatsuno
Our Bank
Bank of Tokyo-Mitsubishi UFJ


  • Managing, selling, importing dog products
  • Dog Care Advice Service
  • English Education service
  • Translation/Interpretation Service (English/Japanese)

Managing, selling, importing dog products

Original Brand “COTOHA Tokyo” launched within Japan and abroad.

日本の伝統工芸を生かした、日本だからこそ実現できる犬ブランド 寿羽 cotoha tokyo

Dog Care Advice Service

We offer a support service for dog owners, counseling for pet loss and dog training advice.
For inquiries

English Education service

“One on One English” is English Education service for children.

Translation/Interpretation Service (English/Japanese)

We provide fast and efficient translations and proofreading
between Japanese and English, and reliable professional interpretation.
Catering towards seminars, business negotiations, visitations and inspections, tour attendants.


Thank you for visiting our website.

One World was established in November 2015.

I wondered how to inform people of the existence of sheltered cats and dogs and what to do to provide them with a new family.
Also while living in various countries, I wondered how to make more people aware of the greatness of traditional Japanese arts, a culture which is seeing a decline in future artisans.

COTOHA was born when these two ideas in mind came together. A brand for dogs which makes use of traditional crafts. COTOHA is a part of One world Corporation together with English Education service, Translation/interpretation service, and Dog support service.

The turning point of my life was moving to Ohio, U.S.A at the age of 12. About three years of the experience in U.S.A shaped my character. I realized that experience had a profound impact in my life. I encountered English for the very first time, I felt the difficulties and joy of learning the English language.

I worked as a career counselor, IT instructor, currently I am working as an English Teacher. Dogs have been a large part of my life since I was born. I have loved dogs since then.

When I was 12, my family and our beloved dog Lily moved to U.S.A. Lily helped me at a time where I found it difficult. She died when I was 14 but still she is still part of my life. This company would not existed without her influence.

After the loss of Lily, I felt I wasn’t ready to have another dog in my life for few years. However one day after moving back to Japan, I visited a pet shop and came across a grown shiba dog which not had a family. She became part of our family since that day.

In 2006, I picked up a book “小さな命を救いたい” by chance which explained the situation of the high number of cats and dogs put down by the authorities in Japan. It had a big impact on me.

The book led me to volunteer and staying in animal shelters where I encountered many unkept dogs. Seeing these dogs made me want to study dog grooming, and which subsequently led me to gain knowledge in Veterinary Science and Cynology, the study of dogs.

It was at this time while volunteering in a shelter that I came across a Golden Retriever around five years old named Elena. She was suffering from filariasis.

She had been traumatized after being bitten on the head by another dog and thus isolated from other dogs. Being in the cage all alone made her whine because she wanted to nestle against people.

I had knowledge of filariasis, so I was worried about taking care of her. But dogs are living in the present and have emotions like people do.

Instead of worrying about the future, I decided that only the present mattered with her. After a few years, she recovered. It was one of the happiest moments of my life.

She passed away in 2014, she had been fighting cancer. That experience made me determined to set up COTOHA Tokyo to honor her memory and also all the other dogs who had been and will be a part of my life.

ayako tatsuno

ayako tatsuno

CEO's Profile

Ayako Tatsuno
Career Development Advicer License
2nd Grade Dog Trainer/Pet loss Care Adviser/ Dog Asssisted Therapy Adiviser

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