---
title: "Maruto Hasegawa Kosakujo — ¥324K/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/maruto-hasegawa-kosakujo"
last_updated: "2026-08-08T06:58:12.661Z"
locale: en
meta:
description: "Niche score 43/100 · ¥324K/yr market · 22K searches/yr · ¥2590.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · ¥324K/yr market · 22K searches/yr · ¥2590.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Maruto Hasegawa Kosakujo — ¥324K/yr Amazon JP Niche (2026) - Flapen"
---
# **maruto hasegawa kosakujo**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 52Growth 22Conversion 7Competition 60Returns 98Price range 0Avg price 0Brand share 0Review moat 91Quality gap 79
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****186.37**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Good****¥324K**
¥324K/yr · 22K searches
**Growth**
**Bad****-6.9%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥2590.47**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥1165.22–¥6425.45**
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, maruto hasegawa kosakujo is a ¥324K/yr Amazon Japan market (22K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Dec. Verdict: Skip it — 43/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **maruto hasegawa kosakujo market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **¥648K–¥1.3M**
- units × avg price
- **Conversion rate**
- **0.6%**
- **Avg BSR**
- **#56**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **17%**
- **Out of stock**
- **0.2%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**4 **—flat
**Sellers**
**68**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**49%**
Top 20: 91%
**Open market**
**0%**
- Maruto Hasegawa kosakujo82% - KEIBA12% - ノーブランド品3% - GENERIC2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 90 weeks — -6.9% search growth over the last 90 days.
1K600Holiday '24Spike '25Black Friday '25Spike '26Prime Day '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Dec · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/jp/diy/maruto-hasegawa-kosakujo/trend)
## **Top maruto hasegawa kosakujo search terms**
- **keiba**10K/yr+10.5%1.7% conv. - **ケイバ ペンチ**6K/yr-20.3%1.3% conv. - **マルト長谷川工作所**4K/yr-34.3%1.6% conv. - **ケイバ**3K/yr+15.4%2.2% conv. - **maruto hasegawa kosakujo**143/yr+47.8%2.9% conv. [**All search terms **](https://flapen.com/research/jp/diy/maruto-hasegawa-kosakujo/search-terms)
## **Top maruto hasegawa kosakujo 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%3%¥10K6%¥19K9%¥29K12%¥39K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) プロホビー ラジオペンチ 溝なし (切断刃なし) HLC-D14**Maruto Hasegawa kosakujo**¥1726.20**4.6★572 rev](https://www.amazon.co.jp/dp/B002AVTEEU) [2**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) プロホビー 丸ペンチ 先細タイプ HRC-D14**Maruto Hasegawa kosakujo**¥1781.24**4.6★598 rev](https://www.amazon.co.jp/dp/B002AVXO6O) [3**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) ハイグレード ザ ペンチ FC-106**Maruto Hasegawa kosakujo**¥2741.36**4.3★113 rev](https://www.amazon.co.jp/dp/B001D7L184) [4**Maruto Hasegawa kosakujo ケイバ(KEIBA) 電工用薄刃ニッパー NH-228**Maruto Hasegawa kosakujo**¥2808.52**4.5★313 rev](https://www.amazon.co.jp/dp/B002RDDL2W) [5**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) マイクロニッパー MN-A05**KEIBA**¥1791.74**4.5★367 rev](https://www.amazon.co.jp/dp/B001D7HCI2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**MARUTO(マルト） ネイルニッパー ネイルプロII 爪切り NP-1020N**Maruto Hasegawa kosakujo**¥4988.39**325 rev10y ago](https://www.amazon.co.jp/dp/B01I3340V0) [**MARUTO 爪切り ネイルプロカラー とき色 NP-1011T**Maruto Hasegawa kosakujo**¥4132.30**36 rev11y ago](https://www.amazon.co.jp/dp/B011KE34CK) [**Maruto Hasegawa kosakujo ケイバ(KEIBA) 電工用ハイパワーニッパー 175mm NH-227**Maruto Hasegawa kosakujo**¥3335.40**404 rev11y ago](https://www.amazon.co.jp/dp/B00MDZR2B0) [**ケイバ(KEIBA) ハイグレード ザ・ペンチ 175mm FCC-107**Maruto Hasegawa kosakujo**¥2754.02**7 rev15y ago](https://www.amazon.co.jp/dp/B0056RDYOG) [**マルト長谷川工作所 ケイバ(KEIBA) スムースローテーション ペンチ 175mm SR-107**Maruto Hasegawa kosakujo**¥2348.41**57 rev16y ago](https://www.amazon.co.jp/dp/B003H52BGG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ケイバ(KEIBA) 電工用薄刃ニッパー NH-228**GENERIC**¥6425.45**1.0★**▲ 281%**](https://www.amazon.co.jp/dp/B0GJT1NF6J) [**Maruto Hasegawa kosakujo ケイバ(KEIBA) 電工用ハイパワーニッパー 175mm NH-227**Maruto Hasegawa kosakujo**¥3335.40**4.5★**▲ 164%**](https://www.amazon.co.jp/dp/B00MDZR2B0) [**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) ハイグレード ザ ペンチ FC-107**Maruto Hasegawa kosakujo**¥2686.98**4.3★**▲ 162%**](https://www.amazon.co.jp/dp/B001D7JF3M) [**マルト長谷川工作所(Marutohasegawakousakujo) ケイバ(KEIBA) プロホビー 平口リードペンチ HFC-D04**Maruto Hasegawa kosakujo**¥1905.87**4.6★**▲ 43%**](https://www.amazon.co.jp/dp/B002AW1Z5K) [**Maruto Hasegawa kosakujo マルト長谷川工作所 ケイバ(KEIBA) プロホビー 丸ペンチ 先細タイプ HRC-D14**Maruto Hasegawa kosakujo**¥1781.24**4.6★**▲ 27%**](https://www.amazon.co.jp/dp/B002AVXO6O)
**~~View all trending →~~**
## **What buyers say about maruto hasegawa kosakujo**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**使用の容易さ**49%
*“便利に使えます”*
**総合品質**15%
*“使えばその良さがわかる一品”*
**厚み**8%
*“先の細さもちょうどよくて”*
**握り心地**8%
*“グリップの握りやすさはさすがケイバさんだと思います。”*
**測定/読み取り精度**2%
*“細かい作業時に欠かせない1本です。作りが精密、かつしっかりつしているので使い続けても合わせがずれないし、手も疲れません。”*
**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**2%
*“細かい作業に最適ですー”*
**コストパフォーマンス**2%
*“リーズナブルに手に入り、大満足”*
**傷に強い**2%
*“ギザなしなので傷が入らない。”*
**色**2%
*“ピンクとかおしゃれで可愛らしい色があればもっと良いです。”*
**耐久性**2%
*“耐久性に期待”*
### **What buyers complain about **
**総合品質**18%
*“最近品質が下がってる気がします。”*
**使用の容易さ**12%
*“使いにくい面がありますが”*
**サイズ全体**11%
*“小さいです”*
**商品の状態**9%
*“中古品と思うほどです。”*
**握り心地**9%
*“購入後に毎回グリップに穴あけ加工するのが地味に面倒。”*
**コストパフォーマンス**9%
*“高いばかやろー”*
**メンテナンスと修理**5%
*“メーカー連絡するも、「金属疲労だから仕方ない...修理 交換 もしない。”*
**耐久性**5%
*“2026年3/24折れた...使用用途は新聞閉じるホチキス針山潰し、打ち損ねた針除去。”*
**平坦さ**5%
*“平ヤットコだった”*
**厚み**3%
*“意外と細すぎて使いにくい面がありますが”*
### **Top return reasons **
**サイズ全体**47%
**不良材料/部品**20%
**硬い感覚**20%
**匂い**7%
**生锈/腐食する**7%
## **Common questions**
- **Is maruto hasegawa kosakujo profitable to sell on Amazon Japan?**
- The niche generates ¥324K/yr across 30 tracked products. 90-day search growth is -6.9%. Flapen's verdict: Skip it (43/100).
- **How competitive is the maruto hasegawa kosakujo niche?**
- 4 brands and 68 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in maruto hasegawa kosakujo?**
- Top complaints mined from reviews: 総合品質, 使用の容易さ, サイズ全体. The return rate is 0.5%.
- **When does demand for maruto hasegawa kosakujo peak?**
- Demand peaks in Dec; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the maruto hasegawa kosakujo niche?**
- Listings span ¥1165.22–¥6425.45; the average listing price is ¥2590.47 (sweet spot $15–$100). The average incumbent carries 186 reviews — the moat a new listing must climb.
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