Image Use / How to Use This Site
Learn about the image licensing terms and how to navigate the Graduate School of Arts and Letters Collection.
1Image Licensing Terms
The licensing terms for images in the Graduate School of Arts and Letters Collection vary by collection and sub-collection. The table below provides an overview, but please always check the "Reuse of Content" field on each item's detail page for the definitive terms.
| Hozawa Documents 朴沢文書 | Tokiwa Daijō Collection 常盤大定旧蔵資料 | |
|---|---|---|
| License | Varies by item (CC BY / Permission required, etc.) | |
| Reuse | Prior copyright permission required | Check the "Reuse of Content" field on the detail page |
| Commercial use | Subject to negotiation | Permitted under CC BY (commercial and non-commercial) |
| Attribution | As directed upon permission | Under CC BY: cite the item title + "Tohoku University Library" |
| How to apply | Submit via the Contact Form | No application needed for CC BY items For restricted items: apply via the Contact Form |
| How to check | All items: Permission required | Check each item's detail page |
Hozawa Documents — Copyright Permission Required
To reuse images from the Hozawa Documents (朴沢文書) collection, you must obtain copyright permission in advance. Please follow the steps below.
Tokiwa Daijō Collection — Terms Vary by Item
The Tokiwa Daijō Collection (常盤大定旧蔵資料) is a database bringing together materials held by both the Graduate School of Arts and Letters and the Tohoku University Library. Licensing terms vary by item, so please check the detail page for each item.
Example attribution for CC BY items:
"XX Rubbing (Tokiwa Daijō Collection, held by Tohoku University Library)"
* For further details on image licensing at the Main Library, please also refer to the Main Library Collection "Image and Original Use" page.
How to Check Licensing Terms — Reading the Detail Page
The licensing terms for each item can be found in the "Reuse of Content" field on the item's detail page. Please see the examples below.
▼ Example of the "Reuse of Content" field: CC BY
When the CC BY icon is displayed → Free to use with proper attribution
▼ Example of the "Reuse of Content" field: Permission required (copyright)
When "Permission required (copyright)" is displayed → Apply via the Contact Form
2About the Collections
The Graduate School of Arts and Letters Collection currently includes the following two collections. Each has its own characteristics, so please review them before use.
Hozawa Documents Collection
The Hozawa Documents (朴沢文書) are a collection of medieval to early modern manuscripts handed down through the Hozawa family of Sendai. The database includes 12 medieval documents, primarily from the Northern and Southern Courts period, and 4 copies of relatively later medieval documents, all with digitized images.
- Standard The IIIF-compatible viewer supports zoom, pan, and other image operations.
- Terms Copyright permission is required to reuse images. → Check the terms
Tokiwa Daijō Collection
The Tokiwa Daijō Collection (常盤大定旧蔵資料) is a database that brings together materials formerly owned by Tokiwa Daijō, now held separately by the Graduate School of Arts and Letters and the Tohoku University Library. Some records are organized in a parent-child hierarchy.
- Unique Parent titles are marked with an asterisk (
*) at the end. - Note Child titles do not appear in search results. Check the child records from the list on the right side of the parent title's detail page.
- Terms Image licensing terms vary by sub-collection. Check the "Reuse of Content" field on the detail page. → Check the terms
3How to Search
Search Methods
🔍 Keyword Search
You can search from the top page or from each collection page. Enter keywords in the search box labeled "Keyword." The search covers all data fields for each item.
🏷️ Advanced Search
On each collection page, you can also perform advanced searches by specifying fields such as title, author, or year.
Search Tips
| Method | Description |
|---|---|
| AND search | Separate multiple keywords with spaces |
| Exact match | Enclose the phrase in double quotes (e.g., "Kitabatake Akiie") |
| OR search | Not supported |
| Variant characters | Supports the NII "Kanji Unified Index" (developed with cooperation from Yasunori Wakayama, Reitaku University) |
| Case sensitivity | Not case-sensitive |
| Full-width / half-width | Not distinguished |
*) first, then locate child titles from there.4Search Results
Search results are initially sorted by relevance. You can also sort by title (ascending/descending) or year (ascending/descending).
The display can be switched between "List" view and "Thumbnail" (grid) view.
5Image Viewer
For items with registered images, you can view them using the IIIF-compatible viewer (the default viewer for this system is Mirador 4.0). The viewer supports the following operations:
- Zoom in and out
- Page through multiple images
- Download individual images (from the viewer menu)
6Downloading Images
You can download individual images from the IIIF-compatible viewer menu.
If a "Batch Download" button appears below the viewer, you can download all images at once. If the button is not available, please contact us through the "Contact" menu.
7System Requirements
This site supports the following browsers:
- Google Chrome (recommended)
- Mozilla Firefox
- Microsoft Edge
- Safari
* Some features may not function properly if JavaScript is disabled.