Intellectual Property Organization

• World Intellectual Property Organization (WIPO) [ http://www.wipo.int/ ]
• International Association for the Protection of Intellectual Property (AIPPI) [ https://www.aippi.org/ ]
• International Association for the Protection of Intellectual Property of Japan (AIPPI-JAPAN) [ http://www.aippi.or.jp/ ]

Patent Office

• Japan Patent Office [ http://www.jpo.go.jp/ ]
• United States Patent and Trademark Office [ http://www.uspto.gov/ ]
• European Patent Office [ http://www.epo.org/ ]

Patent Search

• Industrial Property Digital Library (National Center for Industrial Property Information and Training) [ http://www.ipdl.inpit.go.jp/homepg_e.ipdl ]
• PATOLIS [ http://www.patolis.co.jp/en/ ]
• PATENTSCOPE® (World Intellectual Organization) [ http://www.wipo.int/pctdb/en/ ]
• esp@cenet (European Patent Office) [ http://ep.espacenet.com/ ]

Patent Attorney

• Japan Patent Attorneys Association [ http://www.jpaa.or.jp/english/ ]
• Patent Attorney Search System 'Benrishi Navi'(Japan Patent Attorneys Association) [ http://www.benrishi-navi.com/ ]
• Patent Attorney and Patent Law Firm Search Engine [ http://www.n-d.co.jp/copy/search.htm ]

Court

• Supreme Court of Japan [ http://www.courts.go.jp/ ]
• Intellectual Property High Court [ http://www.ip.courts.go.jp/ ]

Other

• Patent Salon [ http://www.patentsalon.com/ ]