본문 바로가기

* High Concentration Research period: 5/1 ~ 7/1 (2025)


* Current Research to Production Ratio (Time spent) =5:5  (4/29/2025)

 

* More time is spent for producing urushi pens, than non-urushi pens.
 

* Please do not contact me about: Reverving a pen.

Please forgive me if I turn down reservation requests.

 

 

 
 < Currently working on >

* All urushi variants use "Super Urushi 4th gen." system
- Urushi: Tamenuri urushi symmetry 

- Urushi: Astral silver(AG) urushi symmetry 

- Urushi: Speckled urushi symmetry 

- Urushi: Pattern tamenuri urushi symmetry 

- Urushi: Gold(AU) flake tamenuri urushi symmetry 

 

- Urushi: diamond dodecagon symmetry 
- Urushi: dodecagon symmetry

 

- Special Raden I : Continuous type (invisible minimal segments) - simple type 
- Special Raden I : Continuous type (invisible minimal segments) - advanced type

(thick raden 1mm)

- Special Raden III : Precision Engraved Astral Raden inlay tamenuri urushi symmetry (no shape limitation)

(currently developing themes: tropical birds, fallen leaves, cat & moon, triangle matrix, flower & leaf pattern, pond) / (typical thickness raden 0.2mm)

- Special Raden IV : stripe / dot matrix raden inlay

(thick raden 1mm)

- Special Raden V : Makie style raden (fine raden fragments used)

- Special Raden VI : Mosaic style raden (typical thickness raden 0.2mm)

 

- Astral Raden Urushi symmetry (various fragment sizes)

 

- Platinum alloy / Gold alloy nib research

(may take a long time to develop)

Vital technologies aquired (alloying, rolling, bending, cutting, engravings stamping, welding, polishing, slitting, heat treatment, mold making, etc. technologies)

theoretical completion 95% / actual technologies acquired 85%

 

 

 

 

-Machined titanium clip

-Eureka Hybrid (titanium/ultem)

 

-automatic nib point grinding process for titanium nib

 

< completed >  (if the list gets too long, old ones will get deleted)

- Titanium nib setting / polishing process
- Surface treatment process for titanium nib
- compatible feeder for titanium nib
- compatible grip section for titanium nib

- Precision Machined Titanium Nib
- Raden (urushi) process using 0.5~1.0mm thick mother of pearl
- Upgraded Urushi base / finishing coating process (overall quality upgraded)
- Jig for filming fountainpen
- Symmetry for advanced urushi techniques (Optimized for urushi durability)
- Diamond Symmetry (Ultem)
- Slim Asymmetry ultem
- Slim Asymmetry peek
- a method of sealing the ultem converter for carrying around 
- 5th gen v4 ebonite feeder 
- Eureka Ultem ink cartridge
- PEEK (carbon fiber 30%) Diamond symmetry
- Easy nib removal tool 
- Solid Ebonite Pen rest (faceted)
- Solid Ebonite Pen rest (diamond)
- symmetry for raden
- Expanding factory space by 50%
- optimized tripple thread design v2.0
- symmetry for urushi (Optimized design for best urushi durability)
- Dodecagon Cigar Symmetry for Urushi (Optimized for urushi durability)
- diamond dodecagon cigar symmetry for urushi  (Optimized for urushi durability)
- 13 types of grip for Urushi
- Peek 14 types of grip designs
- various compatible ebonite feeds for 11 different brands of nib
- Super Urushi 4 testing, additional research, etc.
- 5th gen v3 ebonite feeder 
- (upgraded) micro-hammering nib surface treatment technique
- researching possibility of black PEEK
- Peek Tan: diamond dodecagon symmetry 
- Peek Tan: emerald dodecagon symmetry
- Peek Black: diamond dodecagon symmetry 
- Peek Black : emerald dodecagon symmetry
- Peek Black : dodecagon symmetry
- Ultem different types of grip designs

 

 

 

< future plans > indefinite time frame

- dodecagon emerald, diamond, spiral, zigzag, etc. cap Asymmetry (peek / ultem) 
 
- Special geometry urushi symmetry
(ex: something like nakaya's dorsal fin, but different, a special geometry)
 
- precision face knurling technique (type: linear, arc, maze, etc.)
- precision vertical knurling technique (applicable to tapered / arc surface)
 
- Diamond scribe Nib engraving


- Precision Knurling technique (applicable to tapered or arc surface, arc surface may be not possible but will try) --- low priority  
 
- Special Raden Urushi II : Perfect Unibody type ( multi-axis curved raden )
 high durability thick raden (1mm)
(eureka's ultimate raden technique / technology) , any shape can be realized without limitations, without fragmentation.
* there may be some size limitation

 

- PEEK / Ultem: diamond dodecagon symmetry 
- PEEK / Ultem : emerald dodecagon symmetry 
- PEEK / Ultem : spiral dodecagon symmetry 
- PEEK / Ultem : zigzag dodecagon symmetry 

 

사업자 정보 표시
유레카만년필 | 정상현 | 다산순환로20 | 사업자 등록번호 : 428-34-01314 | TEL : 010-4406-4810 | Mail : beatmaster90@naver.com | 통신판매신고번호 : 2018-다산-0077호 | 사이버몰의 이용약관 바로가기