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スガツネ工業(sugatsune)

Skip it

Pricing outside the sweet spot ($1929.28 avg) — this niche doesn't clear our bar today.

Market size 58Growth 14Conversion 14Competition 44Returns 97Price range 0Avg price 0Brand share 5Review moat 87Quality gap 80

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Review moat

Great251.05

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Market size

Good¥456K

¥456K/yr · 21K searches

Competition

Okay59%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-21.4%

90-day search growth — must beat 0% to launch

Conversion

Bad1.1%

search→purchase rate — share of searches ending in a sale

Brand share

Bad98%

top-5 brand share — brand-locked demand

Avg price

Bad¥1929.28

avg listing price — sweet spot $15–$100

Price range

Bad¥462.70–¥9080.48

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon Japan niche tracking, スガツネ工業(sugatsune) is a ¥456K/yr Amazon Japan market (21K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Jan–Feb–Mar–Dec. Verdict: Skip it — 41/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

スガツネ工業(sugatsune) market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
¥482K–¥965K
units × avg price
Conversion rate
1.1%
Avg BSR
#109
Page quality
0%
Prime
79%
Sponsored
5%
Out of stock
0.0%
Avg brand age
60 months
Avg seller age
185 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 falling

Sellers

50

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

59%

Top 20: 100%

Open market

0%

  • Sugatsune46%
  • Lamp19%
  • スガツネ工業(Sugatsune)17%
  • 杉田エース(Sugita Ace)13%
  • MegiaExist3%
  • 平山2%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -21.4% search growth over the last 90 days.
1K750Spike '24Holiday '24Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar, Dec · busiest ÷ quietest = 2.7×

Top スガツネ工業(sugatsune) search terms

  • スガツネ工業12K/yr
  • スガツネ5K/yr
  • スガツネ工業(sugatsune)4K/yr
  • sugatsune529/yr
All search terms

Top スガツネ工業(sugatsune) products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%¥23K10%¥46K15%¥68K20%¥91K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about スガツネ工業(sugatsune)

What buyers praise and complain about, mined from review topics.

What buyers love

組み立て/インストール22%

“取り付けは慎重に。”

総合品質21%

“良い商品でした”

サイズ全体13%

“当然純正棚受けにはジャストフィットで緩みも無くしっかり棚を支えてくれます。”

コストパフォーマンス12%

“お手頃価格で非常に満足してます”

使用の容易さ6%

“問題なく使えます”

強さ4%

“強度のある棚受”

騒音レベル3%

“バタン音解消”

耐久性2%

“耐久性にも問題なさそう”

ロック機構2%

“ワンタッチでしっかりとロックして、とても優秀な商品だと思う。”

追加アイテム/添付ファイル2%

“問題なしで取付。”

What buyers complain about

サイズ全体14%

“取付(差込部)のサイズが違い”

耐久性14%

“1年ちょいで壊れました”

重い10%

“扉が重くなりました”

使用説明書/ユーザーマニュアル/トラブルシューティング7%

“説明書がないので自分で調べる必要がある。”

騒音レベル6%

“そのうち「ばちっ」と大きな音とともに取付側に戻ってしまいます。”

接着性/粘着性4%

“手がベタベタになります”

強さ4%

“プラスチック部分が弱く、取り付けると同時にプラ部分が一部割れて. しまいましたが、問題なく使えています。”

追加アイテム/添付ファイル4%

“付けないほうが良い”

コストパフォーマンス2%

“価格は安いけど造りはしっかりしているしスライドもスムーズ。”

組み立て/インストール2%

“レールを取り外して再設置する際に非常に硬くて、間違って設置しているか、寸法を間違ってしまったのかと不安になるほど。”

Top return reasons

サイズ全体48%
広告と実際の製品の違い12%
不良材料/部品10%
組み立て/インストール5%
メカニズムの問題5%
互換性-全体5%
強さ2%
総合品質2%
ロック機構2%
機能全体2%

Common questions

Is スガツネ工業(sugatsune) profitable to sell on Amazon Japan?
The niche generates ¥456K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -21.4%. Flapen's verdict: Skip it (41/100).
How competitive is the スガツネ工業(sugatsune) niche?
6 brands and 50 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in スガツネ工業(sugatsune)?
Top complaints mined from reviews: サイズ全体, 耐久性, 重い. The return rate is 0.6%.
When does demand for スガツネ工業(sugatsune) peak?
Demand peaks in Jan–Feb–Mar–Dec; the busiest month runs 2.7× the quietest.
What does it cost to enter the スガツネ工業(sugatsune) niche?
Listings span ¥462.70–¥9080.48; the average listing price is ¥1929.28 (sweet spot $15–$100). The average incumbent carries 251 reviews — the moat a new listing must climb.