New York attorney record · Judicial Dept 1
Tomohiro Koyasu
Harvard Law School alumna, admitted to the New York bar in 2019. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2019
- Admitted
- 7
- Years in bar
- 5669106
- NY reg #
The record in one line
Admitted in 2019, Tomohiro Koyasu has built 7 years of active New York practice - more tenure than 12% of the state's currently-active attorneys.
- 7 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 88%
- by tenure among active NY attorneys
- Law school
- Harvard Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5669106 on the New York register belongs to Tomohiro Koyasu, currently in active standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Nagashima Ohno & Tsunematsu, located in Tokyo. 5 other attorneys share this firm affiliation in the registry. Educational background: Harvard Law School (16,595 registered alumni).
State context & due diligence
Tomohiro Koyasu is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
7 years into an active New York practice since a 2019 admission, Tomohiro Koyasu sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
7 years on the New York bar
Years since admission, all currently-active NY attorneys
7 Top 88% higher than 12% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How Tomohiro compares to fellow Harvard Law School alumni
Among the 8,587 Harvard Law School graduates in the New York register, Tomohiro Koyasu is longer-tenured than 15% - a school-cohort view of experience, alongside the statewide one above.
7 years vs. Harvard Law School alumni
Years since admission - 8,587 NY-registered alumni of this school
7 Top 85% higher than 15% of 8,587 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
Harvard Law School's active-bar rate
Of Harvard Law School's 16,595 alumni in the New York register, 73.6% currently hold "Currently registered" status, above the statewide average.
Harvard Law School alumni, active-bar rate
The 2019 admission class today
Of the 8,536 attorneys admitted to the New York bar in 2019, 92.5% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5669106
- Year Admitted
- 2019 (7 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Mar 2027
Location & Contact
- Company
- Nagashima Ohno & Tsunematsu
- City
- Tokyo
- Phone
- +81-3-6889-7000
Education
Status Distribution Across the New York Bar
Tomohiro Koyasu's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Nagashima Ohno & Tsunematsu
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
Tomohiro Koyasu's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Tomohiro Koyasu licensed?
Tomohiro Koyasu is licensed to practice law in New York.
When was Tomohiro Koyasu admitted to the bar?
Tomohiro Koyasu has been on the New York bar register since 2019.
Where did Tomohiro Koyasu go to law school?
Tomohiro Koyasu attended Harvard Law School.
What company does Tomohiro Koyasu work for?
Tomohiro Koyasu is associated with Nagashima Ohno & Tsunematsu in Tokyo.
Is Tomohiro Koyasu in good standing?
Yes, Tomohiro Koyasu holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.