Japan 46% open

JP Post does not claim copyright on zip code data.

Additionally, a data set linking postal addresses with geo-coordinates are separate, but publicly available online, free of charge, in bulk, without much usage restriction, in digital, machine-readable format, in a timely manner (updated yearly). http://nlftp.mlit.go.jp/isj/index.html The license for the geocoded postal data can be found here http://nlftp.mlit.go.jp/isj/agreement.html.

Seems no restriction for its use but not clear, but unified bulk data seems not available (you have to download them one by one). English translation of those laws are also available (http://www.japaneselawtranslation.go.jp/) but not always up-to-date.

This so-called "e-stat" is the one-stop government stat data site of Japan. Most of data are available in Excel, some even CSV (unfortunately some are still PDF). You may use them basically free of charge.

"3) Prohibited use" makes the data non-open.

Restrictions on use found here.

The license of the e-Stat data is available at http://www.e-stat.go.jp/estat/html/spec_en.html. And MoF's license is here: http://www.mof.go.jp/english/notice.htm

Section 3 in the license "Prohibited use" makes the data non-open.

Weekly weather forecast which includes temperature and precipitation can be found in the link above. Data is bulk, but is not in machine readable format.

As stated in http://www.nies.go.jp/igreen/index.html, re-distribution and modification are not allowed.

data from year 1981 -2012 is Available in bulk to download from http://www.nies.go.jp/igreen/index.html

how to use the Atmospheric Environmental Regional Observation System in can be see in this link http://soramame.taiki.go.jp/dss/kosa/en/document/3how%20to%20see%20PM%20map.pdf

Data that can be downloaded is an XML document file or JPGIS2.x format, encoded in JPGIS2.x (GML) format. Data is provided timely (last update: 31/07/2015). Users need to register to download data. No terms of use are provided and the FAQ (http://fgd.gsi.go.jp/download/faq_download.html) also do not mention terms of use.

Basemap data is protected by Survey Law.

Tender for purchase information is aggregated at following page.

• http://www.kantei.go.jp/jp/kanbou/20tyoutatu/1_buppin/1_buppin_pdf.html
• http://www.jetro.go.jp/gov_procurement.html

Each Ministry publishes their tender on their own webpage. In those webpages, all the required information are concluded.

• 衆議院 /House of Representatives

• http://www.shugiin.go.jp/internet/itdb_annai.nsf/html/statics/choutatsu/chotatsujoho.htm

• 参議院 /House of Councillors

• http://www.sangiin.go.jp/japanese/annai/choutatu/21buppin-ekimu/21seifuchoutatu.html

• http://www.sangiin.go.jp/japanese/annai/choutatu/index.html

• 最高裁判所 /Supreme Court

• http://www.courts.go.jp/tyotatu/

• 会計検査院 /Board of Audit of Japan

• http://www.jbaudit.go.jp/proc/info/index.html

• 内閣 /Cabinet

• http://www.cao.go.jp/chotatsu/geps_link/geps_link.html#kanbou

• 人事院 /National Personnel Authority

• http://www.jinji.go.jp/tyoutatu/index14.4.1.htm

• 内閣府 /Cabinet Office

• http://www.cao.go.jp/chotatsu/

• 宮内庁 /Imperial Household Agency

• http://www.kunaicho.go.jp/kunaicho/chotatsu/chotatsu.html

• 国家公安委員会（警察庁） /National Public Safety Commission

• https://www.npa.go.jp/chotatu/chotatsu/newmainmenu2.htm

• 防衛省 /Ministry of Defence

• http://www.mod.go.jp/j/procurement/chotatsu/index.html

• 総務省 /Ministry of Internal Affairs and Communications

• https://www.geps.go.jp/

• 法務省 /Ministry of Justice

• http://www.moj.go.jp/chotatsu_index.html

• 外務省 /Ministry of Foreign Affairs

• http://www.mofa.go.jp/mofaj/annai/shocho/chotatsu/

• 財務省 /Ministry of Finance

• http://www.mof.go.jp/procurement/

• 文部科学省 /Ministry of Education, Culture, Sports, Science and Technology

• http://www-gpo3.mext.go.jp/kanpo/gpoindex.asp

• 厚生労働省 /Ministry of Health, Labour and Welfare

• http://www.mhlw.go.jp/shinsei_boshu/choutatsujouhou/

• 農林水産省 /Ministry of Agriculture, Forestry and Fisheries

• http://www.maff.go.jp/j/supply/

• 経済産業省 /Ministry of Economy, Trade and Industry

• http://www.meti.go.jp/information_2/publicoffer/00_bid_news_list.html

• 国土交通省 /Ministry of Land, Infrastructure, Transport and Tourism

• http://www.i-ppi.jp/Search/Web/Index.htm

Cadaster "地籍図, 公図" data is managed by each Local Government. There is no description for area or distance information on this data set. Format is "地籍フォーマット2000 (Cadaster format 2000)" or SIMA.

Reading Cadaster is practicable at each local government office.

As similar data set, "地積測量図 (Acreage Survey Drawing)" is managed by Legal Affairs Bureau "法務局" on each local/region. Data format is combination of "地図XML (Map XML)" & "登記CSV (Registration CSV. contains ownership information)".

"地積測量図" data is published by "一般財団法人 民事法務協会" with fee. Data format is PDF when published.

• http://www1.touki.or.jp/
• http://www1.touki.or.jp/service/index.html

PDF, so not machine readable. No bulk data, no open license, charge to access data.

Water Quality data is available on this page. Yearly published.

• Publish

• https://www.nies.go.jp/igreen/

• Data Column details

• https://www.nies.go.jp/igreen/explain/water/content_w.html

Comparizon with minimum requirement and this dataset.

• fecal coliform 大腸菌 < OK
• arsenic ヒ素 < OK
• fluoride levels フッ素 < OK
• nitrates 硝酸 < OK
• TDS (Total dissolved solids) 総溶解固形分 < Not available

Also, each prefectures publish their own inspects from their web page. Some of those data are available monthly/yearly, not Open.

Annual aggregated expenditure data on specific items (financial statistics) is available from Ministry of Finance.

• http://www.mof.go.jp/budget/budger_workflow/account/fy2014/index.html
• Balance (Monthly): http://www.mof.go.jp/budget/report/revenue_and_expenditure/index.htm
• Stat of expenditure (Quarterly): http://www.mof.go.jp/budget/report/budget_use/index.htm

The phrase: "3) Prohibited use" makes the data non-open.

Most of data is now available in Excel format. Some minor data is still in PDF, though.

Other dataset could be seen from here. * http://www.soumu.go.jp/senkyo/senkyo_s/data/index.html#chapter1

"3) Prohibited use" makes the data non-open.

• http://www.soumu.go.jp/menu_kyotsuu/policy/tyosaku.html