Professionals

Litigation & Foreign Litigation Support

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  Yasuhiro Ohtsuka

  Patent Attorney, Managing Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions, and litigation in the technical fields of information processing, image processing, user interfaces, telecommunications, mechatronics, toys, and gaming

  Details
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  Yasunori Ohtsuka

  Patent Attorney, Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions and litigation in the technical fields of business equipment, telecommunications, and medical devices

  Details
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  Jiro Takayanagi

  Patent Attorney, Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions, and litigation in the technical fields of mobile communications, IoT, information processing, analog and digital circuits, security encryption, electrophotography, factory automation, fuel cells, e-commerce and financial systems

  Details
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  Yukimitsu Eikawa

  Patent Attorney, Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions and litigation in the technical fields of semiconductor devices, semiconductor production equipment, optical instruments, computer hardware and digital and analogue circuits.

  Details
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  Shuji Kimura

  Patent Attorney, Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions and litigation in the technical fields of mechatronics, technologies related to automobiles/two-wheeled vehicles, toys and gaming, office devices, semiconductor production equipment, metal heat treating and their devices

  Details
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  Yoshio Nishikawa

  Patent Attorney, Principal

  Patent prosecution in the technical fields of chemical and medical technologies; opinion work relating to patent validity and infringement Patent validity searches; counseling clients on patent prosecution and portfolio management

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  Kiyohito Ejima

  Patent Attorney, Principal

  Patent prosecution and litigation in the fields of telecommunications, digital circuits, networks, semiconductor devices; legal opinions on patent validity and infringement.

  Details
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  Yasuhiro Sakata

  Patent Attorney, Partner

  Patent prosecution and litigation in the technical fields of telecommunications (LTE. WiFi, 5G), networks, image processing and information processing

  Details
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  Takashi Sakamoto

  Patent Attorney, Partner

  Patents prosecution and litigation in the technical fields of telecommunications (3G, LTE, 5G, WiFi), electrophotography, image processing, and optical recording devices.

  Details
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  Takahiro Ohto

  Patent Attorney, Partner

  Patent prosecution and litigation in the technical fields of communications, semiconductor devices, machine learning, automated driving, medical devices, smartphones, and network printing

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  Koji Maeda

  Patent Attorney, Partner

  Patent prosecution and litigation in the technical fields of telecommunications (3G, 4G, 5G, WiFi), signal processing and source coding.

  Details
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  Haruhito Yoshida

  Patent Attorney

  Patent prosecution and litigation in the technical fields of telecommunications (3G, 4G, 5G, WiFi), signal processing, image processing, information processing, electrophotography, and office equipment

  Details
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  Junya Ohde

  Patent Attorney, Partner

  Patent prosecution and litigation in the fields of telecommunications and networks as well as information processing including software and artificial intelligence

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  Tomofumi Kinoshita

  Patent Attorney, Partner

  Patent prosecution, appeal proceedings, oppositions, invalidation actions, and litigation in the technical fields of medicine, chemistry, and medical devices as well as image processing, and AI related technologies

  Details
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  Masau Takayanagi

  (Counsel)　Attorney

  Patent and technology licensing in life sciences

  Details
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  Junjiro Yashiro

  Patent Attorney

  "Consulting and licensing in the technical field of pharmaceuticals Legal opinions on infringement and validity"

  Details