A flower's quality differs from person to person, and from time to time.-- FÅ«shikaden --
(The Flowering Spirit), by Zeami

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Please take a look and see if our services fit your needs.

About Us

Patent Attorneys Ishii & Co. provides intellectual property services to support the establishment and continuity of our customers' businesses.

Patent Attorneys Ishii & Co. is a Japanese patent professional corporation with a 38-year history focused primarily on the mechanical and mechatronic fields.


Filing applications, handling appeals, providing expert opinions, and performing litigation for patents, utility models, designs, and trademarks and consulting related to these services in Japan.

Fields of Expertise

Agricultural machinery, engines, multifunctional machines such as printers and fax machines, office furniture and equipment, automatic warehousing and distribution equipment, water purifiers, items related to packaging such as containers and caps, screws and metal fixtures, and power tools in the mechanical, electric, and mechatronic fields as well as other items in these fields