NAKAYA      Fountain Pen  Writing Science analysis section                                     
                                                         last update   2007/10/20
 
◆We Nakaya is analysing over 6,000 pieces (2005/0ct) of  ''Writing Chart"one by one from customers over the World.
   Since every customers write the chart seriously when buying, we can accumulate statistically high reliable data. 
   We have not seen any mesurement data for wiritng. ,so this ''Writing Chart'' is useful data for us.   
   We will feed back information as suggestion as much as possible by using these data.

 Example 1;  In case of gift 
   We Nakaya attach the chart to the reciever of the gift to customize formally after delivery ,but can Nakaya guess
   reciever's writing character by one or two items of chart? (such as "If you can know a place of pen when reciever 
   write, Nakaya can know incline.")
 
 Example; 
  @ In case of gift
       We Nakaya customize a nib of reciever of Nakaya pen when a person who presents a pen to a reciever. 
       On the other hand, can Nakaya guess the reciever's writing character by a few iems of the writing chart?
       For instance, according to the data base,
       "If Nakaya know a place of holding a pen, we can guess the angle of writing." ,
       "If Nakaya know the writing pressure,we can guess the writing speed." among 8 items of the Writing chart.

  AIs it possible for Nakaya to propose the thickness of  appropliate nib by data base? 
        For instance, data base point out "2,.3" about the nib, it means 30% broader than Fine(2) , 70% thinner than
        Medium. 
                                       etc.
                                                          
◆We basically do the following process to analyse a data of the Writing chart.

 (1) Maintenance of each data.

      We statistically extract only the significant one as data from among 6,000 above-mentioneds pupulations.  
   
 (2) An extranations work of data. 
 
   -1 Classification into Japan and overseas data.
    -2 Classification into the Men and the Women further in the abovementioned.
   -3 We subdivided separately in addition at the age.
    -4 We subdivided to the gift or personal use, and subdivided to the dominant hand (left or right-handed) at the end.

    Each category subdivided to the above-mentioned simpleis totaled.
    (The following are the one at number at 1,500 of samples (pupurations) 4 years ago.)

 - some part of simple total-
 (1) age                                            (4) nib                                          (12) a writing pressure                      


 No.1 one's teen                                No.1 Super Extra fine                      No.1   heavy
 No.2 one's twenties.....                        No.2 Extra fine........                          No.2   a little strong.......
 No.9 one's nineties                            No.9 Music                                    No.6   very light 

(12)Writing pressure (gift)                    (13) palce of holding a pen


 No.1 heavy                                      No.1 near the point                          No.1   vary fast  
 No.2 a little strong.......                        No.2 near the rear                           No.2   fast ........
 No.6 very light                                  No.3 middle part.......                         N0.5   a little slow

 ※If it is possible to write without the cap, that is better.

  (3)Cross tabulation
  Each item of the 'Writing chart' is seen in ''Group: Right-handed , personal use, Japanese" and after a simple total,
  the attribute of each group separately for the group is seen. 




 (4 )The content of the "Writing chart" is made an amount. 

        Examples ; Writing pressure is strong?
        On the Writing chart ; heavy ,  medium ,    light   
    
         We replace each items with the numerical value. ; heavy→1、medium→2、light→3 . 

  Not only an above analysys, but also all result from many aspect of analysys suggest the rsult which we know by our
  experience, however, 30% of whole result suggest a new discovery and opposite things to common sence until now. 

  For instance,
 ▲Writing pressure itself  of Foreign peoples are lighter (weaker) than Japanese one.
 ▲The number of finer nibs which are required by foreign people is much more than Japanese people's requirement. 
  ▲A people whose power is weak and writing pressure is light consequentially prefers a stiff nib than a flexible one.  
     They say stiffer nib is reliable for weak power. 
                                                                                             and so on..

    
 (5)Multivariate analysis ; Professor Hayashi's Making Amount Theory V 

                          
 


 
  According to Mr. Hayashi's Theroy V, we analyze a relation of each item of the writing chart.
    Since the amount of data is huge, we omit to explain in detail, however the shorter the distance of the point this  
    will plotted respectively is ,the deeper the ddeper the lerations of each other are.
    By understanding each point (dot) as one area, we can proceed our analysis deeply and we hope we can recognize 
    the customers' writing characters.(= the customers' potential requiement.) 
  
(6)By Proffessor Klanmail's relation index , we culcurate and analyze each writing character as bubble chart and graph


                          
   Above chart.  ;AxisX ; a writing pressure  AxisY ; a size of letters  

     This analysis is slightly different from correlation analysis.  
     This graph analyze a relation of each attribute of 8 items of the Writing Chart. (Writing pressure. speed...) 
     There are 64patterns of each item of the Writing chart and we devide "Japanese/Foreign people", "Male/Female",
     "Right/Left hand" and so on and analyze all patterns.     

     *Above graph suggests us that a person whose writing pressure is heavy tend to not write a small letters.   
 
 
◆An arrangement of various maker's fountain pen.

      An each scale of the following graph is so small that we cannot see each dot clearly, but we plotted various
      fountain pen's characters including Nakaya pen.
     
      AxisX; an elasticity of nib    AxisY; a glavity
     
     We measured 5 pieces of each fountain pens about the nib elasticity and a glavity by unique method and
     culcurate the avarage. After that we plotted each avalage on the following coordinates. 
     We start to examine whether this data agrees with the customers' demand (Writing chart).

      Measured sample ; Waterman, Mont blanc, Pilot, Parker, Platinum, Delta, Nakaya (ellastic, fexible....).     



 
At this moment, we Nakaya can disclosed the above data.
On the other hand, we would like to make effort to approach better solution by using a valueable data from good Nakaya customers not depend on engineer's experience  and intuition only. 
 
 
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