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MinebeaMitsumi Inc.

6479.TMEDIUM

Security / Bearings · Weight: 2%· Data as of 2026-05-12

Investment Thesis

Two complementary Honda e-motorcycle angles: (1) MAS (MinebeA Access Solutions, former Honda Lock): Honda transferred 100% of Honda Lock Mfg. to MinebeaMitsumi in January 2023. Honda Lock was Honda's exclusive motorcycle security/access supplier since 1956. MAS now supplies ignition systems, smart card keys, and fuel caps to Honda globally. MAS India (Bangalore, ¥1B investment, 2026 operations) is expanding capacity for two-wheelers — direct play on Honda India e-motorcycle scale-up. (2) Precision miniature bearings: ~60% global share in OD ≤22mm segment. Every e-motorcycle motor needs ≥2 precision ball bearings. Record production 350M units/month (December 2025). Forward PE 13.75x on ¥1.19T market cap. PT segment (bearings) generates 59% of group operating profit at 22% margins from only 17% of revenue.

Risk

AP03 FLAG: MAS revenue (motorcycle security/access) is <3% of ¥1.59T total. Drivetrain bearing supply to Honda motorcycles not confirmed in public disclosures. Honda e-motorcycle exposure is real but small relative to overall business. AP01 WATCH: Revenue at record highs for 13 consecutive years — MITSUMI semiconductor segment (34.6% of revenue, FY2025 OP −38%) is cyclical and could cause overall earnings deterioration. FCF is negative (−¥21B) driven by capex. ⚠️ INDIA HALT confirmed Aug 2025: MAS India (Minebea AccessSolutions Bangalore) expansion for two-wheeler access systems faces demand shortfall. Honda India e-motorcycle volumes <1,000 units total. MAS India thesis now primarily 2028 (Karnataka factory). Honda Lock acquisition (2023) supply integration not yet generating India e-motorcycle revenue.

Monitoring Trigger

MAS India factory begins operations and Honda names MAS as India e-motorcycle access supplier → ADD (removes AP03 concern). Honda India e-motorcycle production >300K/year → ADD. Honda insources motorcycle security/access post-MAS acquisition → SELL MAS angle.

Key Dates

2026catalystMAS India Bangalore factory begins operations — confirm Honda India e-motorcycle access component supply

2026-05earningsMinebeaMitsumi FY2026 full-year results — monitor MAS segment revenue and semiconductor recovery

2028catalystHonda India Karnataka EV factory opens — MAS India capacity should scale with Honda production

Update History

2026-05-12exploreHOLD

View report →

New addition from concurrent L4 Honda e-motorcycle supply chain exploration. Former Honda Lock (100% acquired 2023) = Honda-captive motorcycle access supplier since 1956. MAS India 2026 expansion = direct India e-motorcycle catalyst. AP03 flagged (MAS <3% of revenue). Medium conviction — monitoring MAS India operations launch.

all:newadded

2026-05-31exploreHOLD

View report →

Risk flag added: Honda India Activa e: production halted August 2025 — India e-motorcycle catalyst delayed to 2028. Vietnam remains near-term thesis.

risk:India risk not flaggedIndia halt flag added

Key Metrics

18.7

13.75

Fwd PE

1.4

P/B

9.1%

ROE

6.2%

Op Margin

N/A

D/E

1.6%

Div Yield

-¥21B

FCF

¥1,190B

Mkt Cap

Business Segments

Segment	Revenue	Share	Description
PT (Precision Technologies — bearings)	~¥259B est.	17%	Miniature ball bearings (60%+ global share, OD ≤22mm). Supplies EV motors, data centers, aerospace. 22% operating margin, 59% of group OP.
MITSUMI (Electronic components + semiconductors)	~¥526B est.	35%	Sensors, optical devices, motors, power ICs. Cyclical — FY2025 OP down 38%.
MAS (MinebeA Access Solutions / motorcycle security)	~¥45B est.	~3%	Former Honda Lock. Ignition switches, smart keys, fuel caps for Honda motorcycles globally. MAS India 2026 expansion.
Machined Components & Other	~¥692B est.	45%	Mechanical parts, hard disk drive components, other precision components

Supply Chain Evidence

Evidence	Customer	Product	Detail
confirmed	Honda Motor Co., Ltd.	Motorcycle security/access — ignition switches, smart card keys, fuel filler caps (via MAS / Honda Lock)	MinebeaMitsumi acquired 100% of Honda Lock Manufacturing in January 2023 and renamed it MinebeA Access Solutions (MAS). Honda Lock was Honda's exclusive motorcycle security and access supplier since 1956. MAS continues as Honda's primary motorcycle security supplier globally.[source](2023-01)
confirmed	Honda Motor India / HMSI	Two-wheeler EV access components — MAS India factory, Bangalore (operations 2026)	MAS India (Bangalore) investing ¥1B to expand two-wheeler component capacity targeting Honda India's EV scale-up. Operations beginning 2026.[source](2025-07)
probable	Automotive OEMs (broad)	Precision miniature ball bearings (OD ≤22mm) for EV motor assemblies	MinebeaMitsumi holds ~60% global share in miniature bearings (OD ≤22mm). Every e-motorcycle motor requires ≥2 precision ball bearings. While OEM-specific contracts are not public, market share dominance implies Honda and Yamaha motorcycle motor exposure.[source](2025-12)

Primary IR Documentation

Values and insights cited from official company IR releases (earnings, 決算短信, MoUs, presentations).

IR landingMinebeaMitsumi IR landing (English)↗

Cites: Primary IR portal

https://www.minebeamitsumi.com/english/corp/investors/

Earnings releaseMinebeaMitsumi FY3/2026 Full-Year Financial Results (tanshin)↗

Cites: Full-year earnings results

https://www.minebeamitsumi.com/english/corp/investors/disclosure/earning/2026/__icsFiles/afieldfile/2026/05/12/e2026_tanshin_en.pdf

PresentationMinebeaMitsumi FY3/2026 Results Presentation↗

Cites: Full-year results deck (May 14, 2026)

https://www.minebeamitsumi.com/english/corp/investors/disclosure/financial/p2026/__icsFiles/afieldfile/2026/05/14/e2026_presentation_en.pdf

Press releaseCompletion of Acquisition of Honda Lock Mfg. Co., Ltd. (now MAS / MinebeA AccessSolutions)↗

Cites: Confirms the MAS = ex-Honda Lock relationship cited in thesis

https://www.minebeamitsumi.com/english/news/press/2023/1204737_17686.html

Sources & References

↗MinebeaMitsumi acquires Honda Lock — MAS creation (2023-01)https://www.minebeamitsumi.com/english/news/press/2022/1228060_12411.html ↗MAS India Bangalore factory expansion (Jul 2025)https://www.minebeamitsumi.com/english/news/press/↗StockAnalysis 6479.Thttps://stockanalysis.com/quote/tyo/6479/

Peer Comparison

Company	PE	Fwd PE	ROE	Op Margin	FCF
Murata Manufacturing	~49.7x TTM (impairment-distorted; fwd PE ~37x on FY2026 guidance)	~37x (on FY2026 OP +34.8% guidance)	7.25%	15.4%	+¥239B
TDK Corp	26.51	23.71	11.4%	12.4%	+¥169B
Fuji Electric	20.59	17.97	8.2%	8.7%	+¥51B
Sumitomo Metal Mining	28.63	19.76	5.0%	5.0%	+¥87B
AGC Inc	17.89	14.7	4.7%	6.2%	+¥65B
Kureha Corp	N/A	19	-6.7%	-11.1%	~est. negative (capex ongoing)
Asahi Kasei	13.4	12.9	7.7%	7.5%	+¥134B
Mitsubishi Electric	32.85	30.6	10.1%	9.1%	+¥317B
Nidec Corp			6.3%	5.0%	+¥174B
Hirose Electric	23.3	23.5	9.0%	20.3%	~+¥36B
Sumitomo Electric	25.5	29.7	10.2%	8.2%	+¥102B (est.)
Resonac Holdings	83.53	~31.6x	5.72%	4.3%	+¥24B
Rohm Co.	Loss (NI -¥158.4B SiC impairment)	~125x (near-breakeven NI; FY2028 target >20% OP margin)	Loss	+1.6% Q3 FY2026 (recovering from -9.0% year ago)	-¥44B
Shindengen Electric Manufacturing Co., Ltd.	30.8	N/A	N/A	N/A	N/A
GS Yuasa Corporation	11.04	N/A	9.59%	N/A	N/A
Mitsuba Corporation	5.5	N/A	N/A	N/A	N/A
Daido Steel Co., Ltd.	~11x	N/A	N/A	N/A	+est.
Nippon Seiki Co., Ltd.	12.45	12.05	N/A	N/A	+confirmed
Musashi Seimitsu Industry Co., Ltd.	31.6	N/A	N/A	11.1%	N/A
Stanley Electric Co., Ltd.	13.8		4.5%	6.3%	N/A
Honda Motor Co., Ltd.	7.77		5.82%	7.0%	N/A
Mitsui High-tec, Inc.	15.3	13	11.8%	5.8%	-¥12B
MinebeaMitsumi Inc.	18.7	13.75	9.1%	6.2%	-¥21B
Ryobi Limited	~8x	N/A	4.4%	3.2%	N/A
Tokai Rika Co., Ltd.	~8x	N/A	10.9%	5.9%	+est. ¥15-20B
Nippon Chemi-Con Corporation	91	7	3.1%	2.9%	~0 (thin; ¥20B capex planned)
Japan Aviation Electronics Industry, Ltd.	13.7		5.1%	7.1%	thin (¥63B capex over 3yr)
ARCHION Corporation	11	11	~6%	~2.0%	Negative on integration capex through FY2027
Alps Alpine Co., Ltd.	18.3	N/A	N/A	2.4%	N/A
Nichicon Corporation	16.74	N/A	N/A	3.8%	N/A
Mikuni Corporation	4.2	N/A	N/A — confirm vs J-Quants	N/A — thin, est. 1-3%	N/A
T.RAD Co., Ltd.	N/A — confirm vs StockAnalysis	N/A	N/A — confirm vs J-Quants	N/A	N/A
Renesas Electronics Corporation	N/A (EPS negative — IDT amortization ¥370B/yr; operating profit positive)	N/A	~10.5% (pre-impairment FY2025; currently impaired by amortization)	N/A — confirm vs J-Quants	N/A
Shin-Etsu Chemical Co., Ltd.	24.79x TTM	22.32x (pre-PVC recovery)	~10.5-11.5%	~24.7% (FY2026; compressed -14.4% from PVC weakness)	+¥739.4B (FY2025 — outstanding)
Sumitomo Bakelite Co., Ltd.	~17.2x TTM	~12.0x (FY2025 guidance ¥25.5B NI)	6.54%	10.3% (FY2025 guidance)	+¥46B est (EV/FCF 8.73x, EV ~¥400B)
NSK Ltd	32.12	22.70	1.8%	2.96%	+¥44B (est.)
Toray Industries Inc	25.97	16.62	3.19%	5.0%	N/A
SMC Corporation	29.0	27.24	7.9%	N/A	+¥200B (est., high net income + minimal capex)
Mitsui Kinzoku Company, Limited	~29.7x TTM / ~22.3x forward (StockAnalysis/Simply Wall St, May 2026)	~22.3x	~18.4%	~15.6% (implied: OP ¥117B / revenue ¥750B FY2025E)	N/A (verify J-Quants; positive expected given OP margins)
UBE Corporation	~8.4x TTM (cheaply valued)	N/A	~5.1% (WARNING: below TSE 8% target — ROE guardrail triggered. Override: capex-heavy transition period; electrolyte growth pipeline.)	~4.7% (thin — monitor for recovery to 7%+)	N/A (capex-heavy with Louisiana plant — verify against J-Quants when available)
Taiyo Yuden Co., Ltd.	20.79x TTM (StockAnalysis, May 2026)	27.52x (FY2026 guidance: +8% revenue, +50% OP income)	3.92%	~3.3% TTM (trough); guided to ~4.8–5% FY2026 on +50% OP recovery	N/A
F.C.C. Co., Ltd.	9.5x	N/A	N/A	N/A	N/A
Nittoku Co., Ltd.	14.12x	15.45x	N/A	N/A	N/A
NOK Corporation	15.5x	N/A	~3-5%	4.9%	N/A
Yokowo Co., Ltd.	N/A	N/A	N/A	5.1%	N/A
Yamaha Motor Co., Ltd.	7.5	N/A	1.4%	5.0%	+¥52.5B
Hioki E.E. Corporation	27.8x	N/A	N/A	N/A	N/A
Tsubakimoto Chain Co.	~11.2x	N/A	8.75%	~8.1%	est. +¥20-25B
Central Glass Co., Ltd.	17.7x	~14x (26% EPS growth forecast; analyst consensus)	~8.2% (est: NI ¥8.36B / book value ¥101B)	~3.2% (compressed; was ~6-9% pre-Chinese LiPF6 price war)	N/A (J-Quants not available; cross-validate before entry)
CKD Corporation	~36x	~20x (analyst forecast; likely conservative given 35.7% recent earnings growth)	9.19%	12.4%	N/A
Panasonic Holdings Corporation	32.4x	~15x (FY2027 NI expected +2.2x from ¥75B base)	4.77% (FY2026 trough; guided higher FY2027)	~2.9% (FY2026: OP ¥236.4B / Revenue ¥8,049B; compressed by restructuring charges)	N/A (Panasonic Energy capex-heavy; cross-validate before entry)
UACJ Corporation	15.46x	~22x (FY2027 NI guided ¥28B from ¥38.8B; NI decline; caution)	11.21%	~5.4% (Q3 FY2026 9M operating profit margin improving from prior year)	N/A (capital-intensive aluminum rolling; verify before entry)
Kanto Denka Kogyo Co., Ltd.	N/A (loss year FY2026 due to fire). Forward PE ~32x on FY2027 guided EPS ¥118.3	~32x (FY2027 guided NI ¥6.8B / shares 57.46M = ¥118.3 EPS; price ¥3,775)	-4.74% (FY2026 fire loss). FY2027 guided ROE ~10% (¥6.8B NI / ¥68B book)	~8.7% guided FY2027 (¥10B OP / ¥95B revenue). Depressed in FY2026 (fire losses)	Negative FY2026 (fire year). Recovery expected FY2027.
Niterra Co., Ltd.	15.42	14.67	14.80%	~19% (FY2027 guide: ¥150B OP / ¥790B rev)	+¥80B est.
Nippon Sanso Holdings Corporation	~18.6x est.	N/A	~10% est.	~15-16% (Q4 FY2026: ¥56.8B / ¥361.8B)	+¥90B est.