At the Ohboshi Research Institute, we have optimized an e‑book viewer specifically for learning purposes, 

obtained a patent for it,

 and are now preparing it for practical use. This idea received the Incentive Award at the 6th IMS Japan Awards. 

It will make studying much easier and far more enjoyable.

If there is sufficient demand, 

we will secure the necessary funding to make "this e‑book viewer" and to offer it free of charge.

Please click the button below and answer the “simple questionnaire” to let us know your demand.

This e‑book viewer integrates the following three stages to guide you toward the Goal : "passing your exam".

Stage 1: Streamlined Learning — Focus on Understanding

① When you select unfamiliar text in the e‑book with your mouse and click a button, 

the system searches the internet and automatically copies the selected text 

into the question field of a study card, and the text from the searched website into the answer field.

(Even if you cannot read certain kanji, you can look them up simply by selecting text

—no dictionary purchase required—and easily create study cards.)

② Search for explanatory videos based on text in the book, 

watch them at increased playback speed, pause as needed, and type key points into your study cards.

③ Ask a generative AI about concepts you do not understand, then copy your question 

into the question field and the AI’s response into the answer field of the study card.

④ Have generative AI create related practice questions, 

then copy the generated questions into the question field and the answers into the answer field.

⑤ Search past exam questions, then copy the past exam question into the question field, 

the answer into the answer field, and the explanation into the remarks field.

Stage 2: Automated Review — Strengthen Memory  (Active Recall Method)

① Immediately after finishing a study session i.e. Stage 1, 

take out only the newly created study cards and review the material in one pass.

(According to Ebbinghaus’s forgetting curve, 

the first 20 minutes after learning is the period when forgetting occurs most rapidly.)

② Before going to bed, the next day, three days later, one week later, and two weeks later, 

retrieve the cards with a single click and review them.

(Humans consolidate memory during sleep, so reviewing before bedtime helps retention

—combined with "spaced repetition".)

③ If you forget something, clicking a button inside the study card launches the e‑book viewer 

and automatically opens the exact page that was displayed when the card was created, 

allowing you to quickly check the forgotten content.

④ Study card review can be done on a smartphone, 

making it possible to study during commutes or while waiting outside.

Stage 3: Efficient Exam Preparation — Complete Readiness

① Before an exam, you can retrieve only the study cards related to that exam 

and categorize them by subject for a full review.

(This applies not only to final exams 

but also to extracting cards specifically for midterms, end‑of‑term tests, or year‑end exams.)

② Furthermore, you can reorder the categorized card groups_① by the likelihood of appearing on the exam, 

allowing you to review in order of importance.

③ Right before the exam, you can extract only the cards you previously answered incorrectly 

and focus intensively on your weak areas.

Features

★ Once you purchase the book, you can search terms online, watch explanatory videos, 

ask AI questions, generate related problems, save past exam questions, 

review effectively using "spaced repetition", 

and—when time is limited before an exam—efficiently check everything you have learned.

  i.e. It integrates all into one.

★ You can use it while studying multiple subjects in parallel, 

such as English, history, constitutional law, civil law, and criminal law.

★ It can also be used for Japanese-language learning through manga, digital school textbooks, study guides,

       and preparation for various qualifications and certification exams.

★ Since e‑books are available at the same price as in Japan and no dictionary is required, 

　 the financial burden is light, making it easy to start learning Japanese.

Business Model for Free Distribution

　We will distribute this “e‑book viewer” free of charge 

through an e‑commerce site that sells textbooks, problem sets, and similar materials.

　       In other words, as long as you purchase the e‑books at their regular price —just as before—

                        you can use the e‑book viewer at no additional cost.

What I do not want you to misunderstand is that this software was not developed because we place special importance on rote memorization. We created it after witnessing many learners struggle—spending enormous amounts of time  and effort, worrying, and ultimately giving up because memorization felt too difficult. We wanted to find a way to make that painful “task of remembering” easier and more effective, and that desire led to the development of this software.

If the process of remembering and reviewing can be automated and simplified, 

studying becomes much easier and far more enjoyable.

Conclusion: This “e‑book viewer” draws out the latent convenience inherent in e‑books, 

simplifies studying, and supports learners.

If there is sufficient demand from you, we would like to open an online bookstore that uses this e‑book viewer.

Please share your evaluation by voting in the “simple questionnaire” using the button below.

We sincerely appreciate your support.