---
title: "シャプトン(shapton) — ¥7.0M/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/shapton"
last_updated: "2026-08-06T13:45:18.282Z"
locale: en
meta:
description: "Niche score 55/100 · ¥7.0M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · ¥7.0M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "シャプトン(shapton) — ¥7.0M/yr Amazon JP Niche (2026) - Flapen"
---
# **シャプトン(shapton)**
**Worth a look**
Shows a $7.0M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 99Growth 76Conversion 34Competition 43Returns 98Price range 0Avg price 0Brand share 0Review moat 56Quality gap 60
**Market size**
**Incredible****¥7.0M**
¥7.0M/yr · 49K searches
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Growth**
**Great****+62.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,271.6**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥5242.67**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥1720.93–¥14881.03**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")
According to Flapen's Amazon Japan niche tracking, シャプトン(shapton) is a ¥7.0M/yr Amazon Japan market (49K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **シャプトン(shapton) market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **¥5.2M–¥6.6M**
- units × avg price
- **Conversion rate**
- **2.7%**
- **Avg BSR**
- **#130**
- **Page quality**
- **0%**
- **Prime**
- **70%**
- **Sponsored**
- **90%**
- **Out of stock**
- **3.9%**
- **Avg brand age**
- **95 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**2 **▼falling
**Sellers**
**56**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 100%
**Open market**
**0%**
- Shapton88% - ノーブランド品12% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 96 weeks — +62.7% search growth over the last 90 days.
2K1KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/jp/diy/shapton/trend)
## **Top シャプトン(shapton) search terms**
- **シャプトン(shapton)**8K/yr>1,000%0.9% conv. - **シャプトン**16K/yr+10.0%1.9% conv. - **シャプトン 砥石**11K/yr-8.0%1.6% conv. - **砥石 シャプトン**8K/yr+32.0%1.4% conv. - **shapton**7K/yr+46.2%1.0% conv. [**All search terms **](https://flapen.com/research/jp/diy/shapton/search-terms)
## **Top シャプトン(shapton) 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%10%¥698K20%¥1.4M30%¥2.1M40%¥2.8M1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**シャプトン(Shapton) 刃の黒幕 #1000 中 オレンジ K0702**Shapton**¥3416.07**4.6★4,530 rev](https://www.amazon.co.jp/dp/B001TPFT0G) [2**シャプトン 刃の黒幕 ＃2000 中 グリーン K0703**Shapton**¥4175.57**4.5★2,966 rev](https://www.amazon.co.jp/dp/B002LW54RO) [3**シャプトン(Shapton) 刃の黒幕#320荒ブルーブラック K0709**Shapton**¥3576.04**4.4★1,904 rev](https://www.amazon.co.jp/dp/B004D2GCR6) [4**SHAPTON シャプトン RockStar ロックスタースタンダードモデル 1000 11micro class TYPE WA 60212**Shapton**¥3546.93**4.4★41 rev](https://www.amazon.co.jp/dp/B0CJBNFVBV) [5**シャプトン 刃の黒幕 ＃12000仕上クリーム K0705**Shapton**¥6020.10**4.6★5,213 rev](https://www.amazon.co.jp/dp/B002LVZG1E)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**シャプトン 刃の黒幕 エンジ #5000 仕上砥 セラミック砥石 K0704**ノーブランド品**¥5423.74**2 rev1mo ago](https://www.amazon.co.jp/dp/B0H4ZM4CRH) [**シャプトン 刃の黒幕 2000番 中砥石 グリーン K0703**ノーブランド品**¥5953.75**3 rev1y ago](https://www.amazon.co.jp/dp/B0DS798YNS) [**シャプトン 刃の黒幕 1000番 中砥石 オレンジ K0702**ノーブランド品**¥5451.68**1 rev1y ago](https://www.amazon.co.jp/dp/B0DS1BBXGC) [**シャプトン 刃の黒幕 砥石 #220 荒砥 モスグリーン K0706**ノーブランド品**¥4944.90**0 rev1y ago](https://www.amazon.co.jp/dp/B0DS1BFB2R) [**シャプトン 刃の黒幕 砥石 #320 荒目 ブルーブラック K0709**ノーブランド品**¥5200.73**0 rev1y ago](https://www.amazon.co.jp/dp/B0DRVYLKRW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**シャプトン 刃の黒幕 エンジ #5000 仕上砥 セラミック砥石 K0704**ノーブランド品**¥5423.74**3.0★**▲ 134%**](https://www.amazon.co.jp/dp/B0H4ZM4CRH) [**シャプトン 刃の黒幕 1000番 中砥石 オレンジ K0702**ノーブランド品**¥5451.68**5.0★**▲ 118%**](https://www.amazon.co.jp/dp/B0DS1BBXGC) [**SHAPTON シャプトン RockStar ロックスタースタンダードモデル 6000 2micro class TYPE WA 60513**Shapton**¥5303.73**4.4★**▲ 85%**](https://www.amazon.co.jp/dp/B0CJBNGYN7) [**シャプトン シャプトン セラミック砥石 中荒砥 オレンジ M24 #1000 385014**Shapton**¥6109.44**4.4★**▲ 72%**](https://www.amazon.co.jp/dp/B002LVXDQ4) [**シャプトン(Shapton) 砥石M15 エンジ 仕上砥石 #5000**Shapton**¥5656.55**4.4★**▲ 71%**](https://www.amazon.co.jp/dp/B002LW7760)
**~~View all trending →~~**
## **What buyers say about シャプトン(shapton)**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**使用の容易さ**35%
*“作業後の後始末が楽”*
**総合品質**15%
*“商品は最高。”*
**水に強い**12%
*“長時間水に浸さなくても使えるので便利です。”*
**柔らかい感触**8%
*“うーん滑らか”*
**コストパフォーマンス**8%
*“値段相応の良さ”*
**縫い目/仕上げ/磨き**8%
*“研磨力がピカイチ”*
**機能全体**4%
*“価格に見合った性能”*
**サイズ全体**4%
*“サイズは刃の黒幕と一緒”*
### **What buyers complain about **
**コストパフォーマンス**22%
*“高い”*
**使用の容易さ**17%
*“もうすこし荒いほうが使いやすい”*
**総合品質**17%
*“12000番の質ではありません。”*
**厚み**14%
*“厚みはコチラの商品の方が薄型です。”*
**硬い感覚**8%
*“研石自体は結構硬いので長持ちすると思います”*
**耐久性**6%
*“すぐに刃はつくが、荒い感じがします。”*
### **Top return reasons **
**不良材料/部品**57%
**総合品質**29%
**広告と実際の製品の違い**14%
## **Common questions**
- **Is シャプトン(shapton) profitable to sell on Amazon Japan?**
- The niche generates ¥7.0M/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +62.7%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the シャプトン(shapton) niche?**
- 2 brands and 56 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in シャプトン(shapton)?**
- Top complaints mined from reviews: コストパフォーマンス, 使用の容易さ, 総合品質. The return rate is 0.4%.
- **When does demand for シャプトン(shapton) peak?**
- Demand is steady year-round — the busiest month runs 1.9× the quietest.
- **What does it cost to enter the シャプトン(shapton) niche?**
- Listings span ¥1720.93–¥14881.03; the average listing price is ¥5242.67 (sweet spot $15–$100). The average incumbent carries 1,272 reviews — the moat a new listing must climb.
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