* 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