About Us
The Passion Behind the Business

After a thriving career in the plant construction business in Singapore, Hirohito worked as a patent attorney in Japan. He has experience in drafting, filing, and all other prosecutions of domestic and foreign patent applications. He also experienced in Trials and Oppositions.
Now, he returns to his second home town, Singapore, to serve as a bridge between ASEAN and Japan's intellectual property.
Director
Hirohito Katsunuma
ASEAN countries support the economies of countries around the world. As the president of the Asian Patent Attorneys Association, which includes ASEAN countries, I have contributed to intellectual property activities. In order to further enhance the potential of ASEAN, I moved from Japan to Singapore, my second homeland. This will be my last intellectual property activity, serving as a bridge between ASEAN countries and Japan.
His activities in recent years
2018 to 2021 the 12th President of APAA
2010 to 2023 the senior director of the AIPPI Japan Group
2004 - the guest professor of Tokyo University of Marine Science and Technology
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Speaker
December 2023 International Conference on AI and IP Rights / in Taiwan
March 2023 ASEAN IPA Annual General Meeting & Conference / in Vietnam
December 2019 Business of IP Asia Forum 2019 / in Hong Kong
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AIPPI Newsletter
November 2023   The Act for Partial Revision of the Unfair Competition Prevention Act (IP Lump-sum Act)
February 2023   Enforcement of the revised patent law on relaxation of requirements for restoration of patent rights
April 2022   Restriction of Multi-Multi Claims in Japan
November 2021  Update of Japanese Patent Law in 2021.

Maya is a patent attorney and worked with Hirohito in the Japanese patent office.
She experienced in drafting, filing, and all other prosecutions of domestic and foreign patent applications. She not only works as a patent attorney but also manages all administrative matters including accounting.
As our assistant manager, she works with and helps clients to ensure complete satisfaction.
Maya Kadonaga
Assistant Manager
ASEAN countries contain unknown possibilities. It is no exaggeration to say that it supports the world economy.
I am grateful for the opportunity to work in Singapore and would like to contribute to further strengthening the ties between ASEAN countries and Japan through intellectual property.