Data updated: July 2026
Wonderwall 片山正通 ✓
@masamichi_katayama · Instagram · JP · interior-design
About Wonderwall 片山正通
Wonderwall 片山正通 is an expert architect and interior designer based in Japan, known for his sophisticated and minimalist design approach. With a substantial media presence, he has shared 9,195 posts on Instagram, showcasing his work in interior design, home decor, art, and photography. His content is informative and educational, appealing to a diverse audience interested in aesthetic design. Some content may require brand review.
@masamichi_katayama's followers & following
@masamichi_katayama currently has 78,470 followers on Instagram and follows 1,075 accounts, a follower-to-following ratio of 73. That places the account in the micro tier of interior-design creators.
@masamichi_katayama's content
@masamichi_katayama has published 9,195 posts to date, working across static-posts, carousels, reels, stories. The account's content is classified under interior-design, home-decor, design, art, photography. Bio: “インテリアデザイナー Wonderwall®︎代表 @wonderwall_tokyo 武蔵野美術大学名誉教授 Interior Designer Principal, Wonderwall®︎ Professor Emeritus 📷Kazumi Kurigami”
AI quality check on @masamichi_katayama
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@masamichi_katayama's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@masamichi_katayama's audience
Audience snapshot
50% male · 50% female
Core age group25-34
The audience is evenly split between genders, with a skew towards male followers. The primary age group is 25-34, indicating a young adult demographic. The top geographical location for his followers is Japan, suggesting a strong local engagement.
Collaboration pricing
Price tierPremium
Get the AI fair-price estimate → free trialWhich brands fit Wonderwall 片山正通?
This creator is well-suited for collaborations with brands in the interior design and home decor sectors. His expertise and professional tone can effectively communicate brand values and aesthetics to an audience that appreciates quality design.
Frequently asked questions
How many Instagram followers does @masamichi_katayama have?
As of July 2026, @masamichi_katayama has 78,470 followers (78K) on Instagram, follows 1,075 accounts, and has published 9,195 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @masamichi_katayama?
Verified contact details for @masamichi_katayama — including business email where available — are held in Zaver, alongside contacts for millions of other Instagram creators. Zaver users can unlock them instantly and reach out from your own inbox. Unlock @masamichi_katayama's contact info — free trial →
How much does @masamichi_katayama charge for a sponsored post?
@masamichi_katayama sits in the premium price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate →
What is @masamichi_katayama's net worth?
@masamichi_katayama's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 78K followers and a premium price tier in interior-design, brand collaborations are a meaningful income stream — Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate →
Does @masamichi_katayama have fake followers?
Zaver's AI authenticity check scores @masamichi_katayama 98/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check →
Who follows @masamichi_katayama?
@masamichi_katayama's 78K followers skew 50% male / 50% female, core age group 25-34. Full audience breakdowns — age bands, gender split and country-level distribution — are part of @masamichi_katayama's report on Zaver.
Which influencers are similar to @masamichi_katayama?
Zaver lists comparable interior-design creators in Japan in the "Influencers like @masamichi_katayama" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 9,419 vetted interior-design creators with plain-English queries.
What is the follower count?
The creator has 78,470 followers.
What is the engagement rate?
Engagement rate data is not available.
What is the collaboration pricing?
The estimated price tier is premium, but pricing can vary.
What is the content niche?
The primary niche is interior design, with secondary niches including home decor, design, art, and photography.
