Naoharu Tsukimori · Chief Operating Officer · Japan

Thirty-four years learning what the factory promise requires.

RECORD 01Jul 2019 — Present

Chief Operating Officer

Oritsuvane Precision

Sector
Precision components for industrial equipment
Ownership
Founder family 57%; employee holding 13%; institutional investors 30%
Company scale
JPY 38.6 billion revenue for the year ended March 2026
Employees
1,800 employees at October 2026
Geography
Four plants in Japan; Nagoya headquarters
Reporting to
Chief Executive Officer Emiko Hazunari
Team
1,260 operations colleagues; six direct reports at October 2026
Financial scope
JPY 9.4 billion delegated operating expense for 2026–27; revenue and separately approved capital excluded

Mandate

Make the factory network’s production mix and investment sequence consistent with the customer promises it accepts.

Outcomes

  • Ran a ten-week small-order reservation trial with forty-two machine hours per week and JPY 24 million additional expense.
  • Kept lower local utilisation visible alongside an improved selected on-time order measure, without claiming a controlled or company-wide result.
  • Chose a JPY 46 million fixture programme before a proposed JPY 280 million cell and recast twenty-seven variants into three explicit operating offers.

Decisions in context

The COO role connected decisions that individual plants had previously examined within their own measures. A high utilisation figure, an attractive automation proposal and a broad catalogue could each be locally persuasive while leaving the wider operating promise unclear. I worked with commercial, engineering and finance colleagues to make the consequence of those choices visible. The small-order trial accepted additional expense and lower local utilisation. The fixture programme preserved a later capital decision instead of claiming it had become unnecessary. The range review retained existing customer obligations while changing new offers. My authority concerns the operating organisation and its delegated expense. Technical acceptance, specialist safety decisions and capital approval do not become mine because a particular result would improve the production account. I am most useful when the institution wants that distinction examined before a difficult commitment reaches the factory.

Reason for the move

Current appointment; any future transition would preserve ownership of outstanding customer and factory commitments.

RECORD 02Apr 2013 — Jun 2019

Manufacturing Network Director

Oritsuvane Precision

Sector
Mixed-volume industrial-component production
Ownership
Private family, employee and institutional ownership
Company scale
JPY 27.8 billion company revenue for the year ended March 2019
Employees
1,420 employees at March 2019
Geography
Three Japanese plants
Reporting to
Chief Operating Officer
Team
810 manufacturing colleagues; five direct reports in 2018–19
Financial scope
JPY 5.8 billion annual manufacturing expense delegation in 2018–19; investment proposals required separate approval

Mandate

Develop a usable account of plant capability and the production mix each location could credibly support.

Outcomes

  • Funded a JPY 16 million setup-development programme with eighty paid training hours for each of eight participants.
  • Reported five newly authorised operators and three continuing learners, adding to four existing authorised colleagues.
  • Kept assessed capability separate from training attendance before relying on it in the operating plan.

Decisions in context

The network appointment required me to understand differences that a common reporting format could conceal. Plants with similar equipment served different mixes and relied on different distributions of practical capability. The setup programme was one example of the correction. A twelve-person group appeared adequately staffed until the account distinguished the four people authorised for a particular responsibility. Paid learning time and supervisory cover had to enter the plan before additional flexibility could be expected. The result was nine authorised people, not twelve, because three participants still required development. I learned to defend that honest account when a simpler completion figure would have been easier to present. Director was a functional management title and carried no statutory board appointment. The role broadened my operating responsibility while reinforcing that technical authorisation belonged with the people qualified to assess the work.

Reason for the move

Appointed COO to connect the manufacturing network with the wider commercial and investment agenda.

RECORD 03Jul 2005 — Mar 2013

Plant Manager

Oritsuvane Precision

Sector
Machined components and specialist finishing coordination
Ownership
Private manufacturer controlled by its founding family
Company scale
JPY 14.2 billion company revenue for the year ended March 2013
Employees
940 company employees at March 2013
Geography
Japan; responsibility for one plant in a two-plant company
Reporting to
Manufacturing Director
Team
340 plant colleagues; four direct reports in 2012–13
Financial scope
JPY 2.2 billion annual plant operating expense in 2012–13; product acceptance and capital approval separately controlled

Mandate

Deliver the agreed component mix while connecting local production decisions to supplier capability and customer requirements.

Outcomes

  • Reopened a supplier-consolidation decision after two specialist finishing requirements lost adequate practical support.
  • Restored two relationships after qualification, moving the defined group from six to eight rather than returning to the original twelve.
  • Recorded JPY 9 million correction expense and retained the limits of the original simplification in the management account.

Decisions in context

Becoming a plant manager made the expense and people consequence of an operating choice immediate. I could no longer discuss a planning improvement without deciding how the organisation would support it. The supplier episode was an important failure in my own reasoning. I had endorsed a smaller relationship count because the purchasing account appeared simpler, without establishing how every specialist requirement would continue to be served. Restoring two relationships required qualification, expense and an explanation to colleagues who had acted on the original decision. I learned to ask the receiving engineering and production owners about the purpose behind each arrangement before supporting another consolidation. The lesson was not that a large supplier base is inherently better. It was that an administrative measure should not be allowed to stand in for a capability the operating team has yet to establish.

Reason for the move

Promoted to manufacturing network responsibility after broader plant-management experience.

RECORD 04Apr 1998 — Jun 2005

Production Planning Manager

Nuvashiro Components

Sector
Small and medium production runs of industrial components
Ownership
Privately held founder-owned company
Company scale
JPY 6.8 billion company revenue for the year ended March 2005
Employees
460 employees at March 2005
Geography
Japan; one production site
Reporting to
Operations Manager
Team
Seventeen planning and coordination colleagues; three direct reports in 2004–05
Financial scope
JPY 210 million annual planning and coordination expense in 2004–05; no company capital authority

Mandate

Translate accepted customer requirements into a production sequence whose costs and exceptions could be understood.

Outcomes

  • Separated the local benefit of longer runs from the effect on smaller orders waiting behind them.
  • Made the original customer promise visible when reviewing repeated schedule changes.
  • Established a more explicit discussion between commercial and production colleagues before exceptional requirements entered routine plans.

Decisions in context

Planning placed me between two persuasive accounts. Commercial colleagues wanted responsiveness to customers, while production colleagues wanted a stable sequence that used equipment well. I initially thought a better schedule could reconcile every disagreement. The more difficult lesson was that some conflicts required a decision about the promise itself. A small order could be easy to accept and expensive to fit into the preferred sequence. Repeatedly moving it did not resolve that tension; it merely postponed the conversation until somebody escalated. I began keeping the original commitment visible and asking what operating provision had been assumed when it was made. My responsibility remained within planning and coordination, with technical priorities and commercial changes agreed by their proper owners. This appointment taught me to look for the organisational choice hidden behind what first appeared to be a scheduling problem.

Reason for the move

Joined Oritsuvane to take direct responsibility for a plant rather than coordinate its schedule from planning.

RECORD 05Apr 1992 — Mar 1998

Production Engineer

Nuvashiro Components

Sector
Process preparation for industrial-component manufacture
Ownership
Founder-owned private manufacturer
Company scale
JPY 3.9 billion company revenue for the year ended March 1998
Employees
280 employees at March 1998
Geography
Japan; a single factory
Reporting to
Production Engineering Manager
Team
Member of an eleven-person engineering group; no direct reports
Financial scope
No delegated departmental budget or capital approval authority

Mandate

Support process preparation and investigate production delays under experienced technical supervision.

Outcomes

  • Observed how tooling preparation and setup decisions affected the practical working sequence.
  • Connected reported machine activity with the different orders being served or postponed.
  • Learned to distinguish an improvement proposal from an authorised change to the manufacturing arrangement.

Decisions in context

I joined after completing production engineering and began with the detailed work that supports an operating sequence. I prepared records, observed changeovers and helped more experienced colleagues investigate delays. The factory taught me to respect practical skill that was difficult to represent in a simple report. A machine could be working continuously while the next required order waited for a different tool or decision. I could identify that condition and help prepare a response, but I did not possess authority to approve every proposed change. Quality and safety responsibilities remained with the relevant specialists. That was an essential part of learning the work rather than a minor qualification to my contribution. The experience gave me the technical curiosity that later helped in planning, while showing why a headline measure of activity could not describe the whole purpose of production.

Reason for the move

Promoted into production planning to connect technical observations with the wider order sequence.

What I am looking for next

My next operating mandate would ideally concern a manufacturer whose product range or order mix has changed faster than its production assumptions. I would want to understand how commercial commitments are made, how the factories are measured and which capabilities the current plan takes for granted. The institution should be willing to examine the cost of a different promise rather than expect operations to absorb every contradiction through more effort. A transition would need clear responsibility for unfinished investment decisions, supplier arrangements and customer obligations. I would also consider a first non-executive appointment where practical manufacturing judgement would contribute to collective oversight. That interest is conditional on employer clearance, conflicts and realistic time. I would seek a board willing to understand the limits of my governance experience as well as the operating questions I could help it ask. In either setting, I want the work to connect the organisation’s attractive promise with the choices required to keep it.