Japan's Highly Skilled Professional (高度専門職) visa has a dedicated track for researchers, category 1号イ (academic research activities, 高度学術研究活動), covering work at universities and research institutions. It uses the same points-based system for highly skilled professionals (高度人材ポイント制) as the other two HSP-1 categories, requires the same 70-point threshold, and leads to the same HSP-2 and permanent-residence pathway. What differs is which factors on the points table carry weight.
What Is the Academic Research Category (1号イ) of Japan's HSP Visa?
Category 1号イ is one of three status types created under the Immigration Control and Refugee Recognition Act (入管法) and administered through the points-based system by the Immigration Services Agency (出入国在留管理庁). It sits alongside category 1号ロ (technical/specialist activities, 高度専門・技術活動), which covers engineers, IT professionals, and business specialists, and category 1号ハ (business management activities, 高度経営・管理活動), which covers executives and operators of Japan-registered entities. Each category has a distinct points table, and an applicant is assessed under only one category based on the actual duties performed, not the job title on a business card.
The three categories are not interchangeable labels for the same review. Aplash's worked example of an HSP points calculation covers category 1号ロ in detail, and the same 70-point qualifying threshold and general points-table structure (academic credentials, professional experience, annual income, age, Japanese language proficiency, and bonus categories) carries across all three categories, even though the emphasis within that structure shifts for researchers.
Who Qualifies for HSP Visa Under the Academic Research Category?
Category 1号イ is designed for individuals conducting research at a Japan-based university or research institution, including researchers who combine research duties with a limited instructional role. The category is scoped to the actual research activity being performed in Japan, so the qualifying question is what the position does day to day, not the institution's name or the applicant's academic title alone.
This matters because a researcher's appointment letter or employment contract needs to describe duties that map clearly onto 高度学術研究活動 as the Immigration Services Agency defines it. A position that is administratively titled "researcher" but is functionally a management or technical role at a commercial entity would not fit this category, and would instead need to be evaluated against 1号ロ or 1号ハ depending on the actual work performed.
How Do the Points Differ for Researchers Compared to Other HSP Categories?
The category 1号イ points table applies more weight to academic credentials, published research output, and research career history than the table used for category 1号ロ. Doctoral degrees, patents, published papers, and research grants received are scored elements specific to the academic research table, reflecting that research output is the substantive qualification for this category rather than an add-on credential. Aplash is not publishing exact point values or bracket boundaries for these academic-credential and research-achievement scoring lines here, because the Immigration Services Agency updates the published scoring tables periodically and a stale figure produces an unreliable application.
The general categories present in every HSP-1 table, meaning age, annual income, and Japanese language proficiency, still apply to category 1号イ applicants in the same structural way they apply under category 1号ロ. A researcher's overall score is therefore a combination of the category-specific academic and research scoring lines plus these general categories, and the 70-point qualifying threshold for HSP-1 is identical regardless of which of the three categories the application falls under.
Key points:
(a) Category 1号イ (academic research activities) is a separate points table from category 1号ロ (technical/specialist activities) and category 1号ハ (business management activities), and an applicant is evaluated under exactly one category based on actual duties performed.
(b) Academic credentials, research achievements (patents, published papers, research grants received), and academic career history carry more weight under 1号イ, while age, annual income, and Japanese language proficiency remain general scoring categories shared with the other two tracks.
(c) The 70-point HSP-1 qualifying threshold, and the standard 3-year (or accelerated 1-year at 80+ points) upgrade path to HSP-2, are identical across all three categories.
What Happens After HSP-1: Dependents, HSP-2, and Permanent Residence?
An HSP-1 holder under category 1号イ can bring accompanying spouse and children as dependents, and in specific circumstances can sponsor a parent or domestic helper, on the same terms available to 1号ロ and 1号ハ holders. The upgrade path to HSP-2 and the eventual route to permanent residence do not change based on which of the three HSP-1 categories the researcher originally qualified under.
Standard progression is 3 years on HSP-1 before HSP-2 eligibility, or 1 year if the applicant scored 80 points or more at the original HSP-1 filing. Aplash's guide on upgrading from HSP-1 to HSP-2 and the broader overview of the HSP visa's fast-track route to permanent residency both apply directly to researchers holding category 1号イ status, since the upgrade mechanics themselves are category-neutral.
Which HSP Category Should a Researcher Already in Japan Apply Under?
A researcher currently in Japan on a different status, such as the Specialist in Humanities/International Services status (技術・人文知識・国際業務) or a fixed-term research contract, should confirm with the sponsoring institution or department that the actual position falls within 高度学術研究活動 duties before filing under category 1号イ. Selecting the wrong category invalidates the points calculation entirely, since the scoring tables, and the weight given to research output versus general professional experience, differ between categories.
This confirmation step is a sequencing point, not a formality. Institutions that combine research with substantial administrative or instructional duties in variable proportions should document how the appointment is actually structured before the researcher's HSP application is filed, so the correct points table is applied from the outset. Researchers who arrived in Japan on a job-seeking track should also review the J-Find visa guide for how that status interacts with an eventual HSP filing.
Aplash's HSP visa service page covers category confirmation, points-table verification against current published Immigration Services Agency scoring tables, and application preparation for all three HSP-1 categories, including the academic research track.
Frequently Asked Questions
Can a postdoctoral researcher at a Japanese university apply for the HSP visa?
Yes, provided the actual duties fall within 高度学術研究活動 (academic research activities) as scored under category 1号イ of the points-based system, and the applicant's total score reaches 70 points or more. The relevant factors are academic credentials, research achievements, professional and research career history, plus the general age, income, and language categories shared with the other HSP-1 tracks.
Is the academic research HSP category (1号イ) easier to qualify for than the technical/specialist category?
Neither category is inherently easier; each scores different factors. A researcher with strong published output, patents, and research grants received but modest annual income may score well under 1号イ where research achievements carry weight, while the same profile might score less favorably under the 1号ロ table, which weights professional experience and income more heavily for non-research roles.
Does a researcher's HSP-1 category affect the path to HSP-2 or permanent residence?
No. The 3-year standard upgrade window to HSP-2 (or 1 year at 80 or more points) and the subsequent permanent-residence pathway apply the same way regardless of whether the original HSP-1 qualification was under category 1号イ, 1号ロ, or 1号ハ. The category only determines how the initial points score is calculated.
Conclusion
Category 1号イ gives academic researchers a points table built around research credentials and output rather than the general professional-experience metrics used for technical and business roles, but it sits inside the same 70-point HSP-1 framework and the same HSP-2 upgrade mechanics as the other two categories. The determining factor for researchers already employed in Japan under a different status is getting the sponsoring institution to confirm the position's duties map onto 高度学術研究活動 before filing, since an incorrect category selection invalidates the points calculation.
This article is informational only and does not constitute legal, tax, or regulatory advice. Consult a qualified advisor before acting on the content. Last updated: August 2026.